Marmosops (Sciophanes) marina,

Ferreira, Claudilívia, Oliveira, Ana Cristina Mendes De, Lima-Silva, Luan Gabriel & Rossi, Rogério Vieira, 2020, Taxonomic review of the slender mouse opossums of the “ Parvidens ” group from Brazil (Didelphimorphia: Didelphidae: Marmosops), with description of a new species, Zootaxa 4890 (2), pp. 201-233: 208-221

publication ID

https://doi.org/10.11646/zootaxa.4890.2.3

publication LSID

lsid:zoobank.org:pub:54F20D85-7110-465D-914C-26FA34847A02

DOI

http://doi.org/10.5281/zenodo.4328168

persistent identifier

http://treatment.plazi.org/id/03C3945D-FFC7-FFC0-FF04-88E3FB70FBBF

treatment provided by

Plazi

scientific name

Marmosops (Sciophanes) marina
status

sp. nov.

Marmosops (Sciophanes) marina  sp. nov.

Holotype. UFMT 4078 (field number RVR 62; Figures 3View FIGURE 3 and 4AView FIGURE 4) consists of skin and skull of an adult male in good condition, collected in pitfall-trap on 07 May 2014 by Rogério Vieira Rossi at Fazenda São José , Alta Floresta , Mato Grosso, Brazil (09º37’36”S, 56º04’46”W), on the right bank of the Teles Pires River . The specimen is deposited in the Coleção Zoológica da Universidade Federal de Mato Grosso, Cuiabá, Mato Grosso, Brazil.GoogleMaps 

Type locality. Fazenda São José (09º37’36”S, 56º04’46”W), right bank of Rio Teles Pires, municipality of Alta Floresta, state of Mato Grosso, BrazilGoogleMaps  .

Paratype. Five other specimens in addition to the holotype are here designated as paratypes. UFMT 4074, UFMT 4081 (field numbers RVR 24 and RVR 95, respectively), adult males preserved as skin, skull and skeleton, collected by R. V. R. in May 2014 in Fazenda São José (09º37’36”S, 56º04’46”W), Alta Floresta, right bank of Rio Teles Pires, Mato Grosso, BrazilGoogleMaps  ; UFMT 1427, UFMT 1501 (field numbers UTP 621 and UTP 186, respectively), adult males preserved as skin and skull, and UFMT 1421 (field number UTP 59), adult female preserved as skin and skull, collected by T. S. Santos-Júnior and M. Aragona in the municipality of Jacareacanga, state of Pará, Brazil  . All paratypes are deposited in the Coleção Zoológica da Universidade Federal do Mato Grosso, Cuiabá, Mato Grosso, Brazil  .

Geographic distribution. Marmosops marina  occurs south of the Amazon River and on the west bank of the Xingu River, extending west to the state of Rondônia (Antônio Mujica Nava Ecological Station) and south to the municipality of Comodoro, state of Mato Grosso, Brazil ( Figure 5View FIGURE 5)  .

Diagnosis. Dorsal coloration usually grayish-brown; tail length (120–161 mm) greater than head and body length (64–128 mm); venter generally white, with lateral bands of gray based and white-tipped hair varying from narrow to wide, joined or not on the throat and generally not extended to the inner surface of the hind limbs; lac-rimal foramen usually exposed in lateral view; supraoccipital with slightly convex shape in dorsal view; M3 with anterior and posterior portions of the stylar shelf labially projected in the same proportion (in occlusal view); upper molars with anterolabial cingulum and preprotocrista usually united, forming a continuous but narrow shelf along the anterior margin of the tooth crown; metaconule of the upper molars (between the metacone and the protocone) well developed; and talonid of the m4 usually tricuspid.

Morphological description. Marmosops marina  has a head and body length (HBL) varying from 64 to 128 mm and longer tail (LT: 120–161 mm; Tables 4 and 5); dorsal hairs 5–10 mm long; dorsal fur smooth, usually grayish-brown (66.5%, n=166; Figure 4AView FIGURE 4), being slightly lighter laterally; rostrum light brown with some pale red and gray hairs, lighter than the top of the head; blackish mask around the eyes with posterior portion generally in-conspicuous (70.5%, n=78); cheeks with white and/or white and gray-based and white-tipped hairs; hands covered dorsally by whitish hairs; tail bicolor (dark dorsal and paler in the ventral region) with dorsal coloration generally grayish dark brown (70.5%, n=163); tail scales arranged in a spiral, each with three hairs inserted in the posterior margin; the central hair of the triplet clearly thicker and more pigmented than the lateral ones; venter usually white (72.1%, n=165; cream = 27.9%), with lateral bands of gray-based and white-tipped hairs ranging from narrow to wide, joining or not on the throat and generally not extending to the inner surface of the hind limbs (except in UFPA-M 1402; MZUSP: M 97056View Materials, APC 231, COM 127, PEV 792 and UFMT: MOA-ARIP 41, in which lateral bands of gray-based hairs join on the chest; and UFMT 2966, 2972, in which lateral bands of gray-based hairs join on both chest and throat); hands with spoon shaped lateral carpal tubercle in adult males.

Craniodentally, M. marina  exhibits zygomatic process of the squamosal widely overlapped dorsally by the jugal; lacrimal foramina usually (91.5%, n=177) exposed in lateral view (except in UFPA-M 1458; UFMT 1310, 1508, 3563, 3590, UFMT: MOA-ARIP 40; UNEMAT: MSF1912; MZUSP: 3TP 74, 3TP 75, 4TP 10, TPPC 49, TPPC 53, MSAMPP 35, MASAS 113, M 976271); supraorbital margin slightly rounded with a non-prominent crest; long nasal bones (extending slightly behind the lacrimal), usually wider posteriorly than anteriorly (67.2%, n=167); supraoccipital with slightly convex shape in dorsal view (except UFPA-M 983, 985, 991, 996, 1001, 1008); paraoc-cipital process generally long and narrow (79.2%, n=168); ventral surface of the tympanic process of alisphenoid usually oval (74.7%, n=162); cochlear fenestrae exposed in ventral view (except in UFMT 742, 1427, 1501, 1502, 4032; MZUSP: 3TP 11, 3TP 23, 3TP 27, 3TP 74, 3TP 75, TPA 036, TPPC 051, MJ 32); palatine fenestrae absent, but diminutive perforations in the palatine and/or maxillary bones may be present (e.g. UFPA-M 1452; MPEG 38391, 38424, MPEG: JUR 045; UFMT 1360, 1420, 1430, 3563); C1 with anterior and posterior accessory cusps in males and females; M3 with anterior and posterior portions of the stylar shelf labially projected in the same proportion (in occlusal view); upper molars with preprotocrista and anterolabial cingulum usually united (68.3%, n=177), form-ing a continuous but narrow shelf along the anterior margin of the tooth crown; metaconule of the upper molars well developed; lower canine (c1) premolariform (with posterior accessory cusp), generally subequal in higher to p1 (66.7%, n=174); m2 paraconid usually higher than the m1 entoconid (85%, n= 74; except in UFPA-M 983, 985, 996, 1509, 1594, 1664; MPEG 10020, 38395, 39722; MPEG: SPM 05, 28, 31; MZUSP: 3TP 12, 11, 75, TPPC 53; UFMT 1430, 1358, 3549, 3574, 3635; UNEMAT: MSF 1912, 1916, 1921, 1958); and m4 talonid usually tricuspid (70.4%, n=176).

Geographic variation. Student´s t tests showed that females from the right margin of the Tapajós River exhibit larger WM2, Lm4, Wm2, and smaller NL, while males exhibit larger MTR, WM2, LTB, TBO, WET, and smaller PPB, BRC, LIB, and ZB ( Table S4). No geographic variation was observed in the pelage color of M. marina  .

Comparisons with M. parvidens  and other species of the “Parvidens” group ( Table 6). Externally, M. marina  differs from M. parvidens  , M. pinheiroi  (s.s.) and M. woodalli  by exhibiting longer dorsal fur (8 mm long, on average, versus 6.9 a 7.6 mm); lateral bands of gray-based hairs on the venter ranging from narrow to wide, which may or may not join on the throat and generally do not extend to the inner surface of the hind limbs ( Figure 4AView FIGURE 4), ver-sus usually absent in M. parvidens  , whose venter is covered by a continuous band of cream hair that extends along the inner surface of the anterior and posterior limbs ( Figure 4BView FIGURE 4); wide and usually joined on the throat, not extending to the inner surface of the hind limbs in M. pinheiroi  (s.s.; Figure 4CView FIGURE 4); and narrow and irregularly arranged, which may or may not join on the throat and/or mid-chest and usually do not extend to the inner surface of the hind limbs in M. woodalli  ( Figure 4DView FIGURE 4). It also differs from M. parvidens  and M. woodalli  by exhibiting usually grayish-brown dorsal fur ( Figure 4AView FIGURE 4), versus slightly reddish brown in the former ( Figure 4BView FIGURE 4) and usually dark brown in latter ( Figure 4DView FIGURE 4); and ventral coloration usually white ( Figure 4AView FIGURE 4), versus cream in M. parvidens  ( Figure 4BView FIGURE 4), and white in M. woodalli  ( Figure 4DView FIGURE 4). It also differs from M. pinheiroi  (s.s.) and M. woodalli  by exhibiting usually inconspicuous facial mask around the eyes (versus blackish and conspicuous mask that extends to the posterior corner of the eye; Table 6). Finally, it also differs from M. pinheiroi  (s.s.) by exhibiting larger ear and a smaller foot, on average ( Tables 4 and 5).

Craniodentally, M. marina  differs from M. parvidens  , M. pinheiroi  (s.s.) and M. woodali  by exhibiting lacrimal foramina usually exposed in lateral view, versus always exposed in M. pinheiroi  (s.s.), and exposed or not in M. woodalli  and M. parvidens  ; well-developed (versus underdeveloped) metaconule on upper molars ( Figure 6View FIGURE 6 A–B); and preprotocrista and anterolabial cingulum of upper molars usually united, forming a continuous and narrow shelf along the anterior margin of crown of the upper molars ( Figure 7AView FIGURE 7), versus forming a continuous and broader shelf in M. parvidens  ( Figure 7BView FIGURE 7), and not forming a continuous shelf in the other two species ( Figure 7CView FIGURE 7). It also differs from M. parvidens  and M. woodalli  by exhibiting tympanic process of the alisphenoid with usually oval ventral surface, versus usually globose in M. parvidens  , and variable in M. woodalli  . Marmosops marina  can also be discriminated from M. parvidens  by not exhibiting a small accessory cusp between the metaconid and the entoconid of lower molars ( Figure 8View FIGURE 8 A–B). It also differs from M. pinheiroi  (s.s.) by exhibiting larger ear and a smaller foot, on average ( Tables 4 and 5); and talonid of m4 usually tricuspid (versus usually bicuspid). Finally, it differs from M. woodalli  by exhibiting wider nasals (see LN, Tables 4 and 5); supraoccipital slightly (versus rounded and markedly) convex ( Figures 9View FIGURE 9 A–B); and anterior and posterior stylar portions of M3 projected labially in the same proportion (versus posterior portion more projected labially than anterior portion; Figures 6View FIGURE 6 A–B).

Habitats and sympatry. Marmosops marina  occurs in several ecoregions (sensu Olson et al. 2001), including Humid Forests of Tapajós/Xingu, Dry Tropical Forests of Mato Grosso, Dry Forests of Chiquitania, Humid Forests of Madeira/Tapajós, Humid Forests of Purus/Madeira, and Cerrado. According to tag information, two specimens (MPEG 3951, 39752) collected in Vitória do Xingu, state of Pará, Brazil, were associated to open ombrophilous for-est with vines, as well as a specimen collected in Serra do Expedito, Aripuanã, state of Mato Grosso, Brazil (UFMT: MOA-ARIP 41). One specimen collected in Palito, on the right bank of the Tapajós River (UFPA-M 1622), was captured in riparian forest. The species occurs in sympatry with M. noctivagus  in the north, northeast and southwest of the state of Mato Grosso (Alta Floresta, Cotriguaçu, and Comodoro), and southeast of the state of Rondônia (Chupinguaia). It also occurs sympatrically with M. bishopi  in the southwest of the state of Pará (Jacareacanga) and north of the state of Mato Grosso (Paranaíta and Alta Floresta, on the left and right banks of the Teles Pires River).

Natural history data. Mammary formula 4–1–4 = 9. Reproductive and lactating females were recorded in March, April and July in the municipalities of Cláudia (Mato Grosso state), Chupinguaia (Rondônia state) and Jaca-reacanga (Pará state), Brazil.

Etymology. The name given to this species honors Marina Silva (Maria Osmarina Marina Silva Vaz de Lima  ), an historian, environmentalist, former Senator and former Minister of the Environment in Brazil, who is known worldwide for her journey and struggle in defending the Amazon Rainforest. A noun in apposition.

Specimens examined (n=345). BRAZIL — Mato Grosso: Alta Floresta, Parque Cristalino 9°36’S, 55°57’W, 13 M, 5 F ( UNEMAT: MSF 1899View Materials, 1900View Materials, 1901View Materials, 1903View Materials, 1904View Materials, 1912View Materials, 1916View Materials, 1918View Materials, 1921View Materials, 1933View Materials, 1936View Materials, 1945View Materials, 1957View Materials, 1958View Materials, 1964View Materials, 1966View Materials, 1980View Materials; UFMT 4032)GoogleMaps  ; Alta Floresta, Fazenda São José , 09º37’36”S, 56º04’46”W, 3 M ( UFMT 4054, 4081 [paratype], 4078 [holotype])GoogleMaps  ; Aripuanã, 10º10’S, 59º27’W, 3 M, 3 F ( MZUSP: APC 191, 198View Materials, 231View Materials, 236View Materials; 252, 266)GoogleMaps  ; Aripuanã, Salto de Dardanelos , 10º09’40”S, 59º26’50”W, 3 M ( UFMT 742, 590; UFMT: MOA-ARIP 40)GoogleMaps  ; Aripuanã, Serra do Expedito , 10º04’19”S, 59º29’19”W, 1 M ( UFMT: MOA-ARIP 41)GoogleMaps  ; Comodoro, LT Madeira, 13º42’12”S, 60º26’16”W, 9 M ( MZUSP: N3-06View Materials, 07View Materials; M3-001, 002, 003, 006, 014; MSB 10View Materials; MDL 05)GoogleMaps  ; Colniza, 8°54’S, 59°7’W, 1 M ( UFMT 1875)GoogleMaps  ; Claudia, 11º35’S, 55º10’W, 6 F, 3 M, 3? ( MZUSP: M 07021View Materials, 97021View Materials, 97056View Materials, 097069View Materials, 976271View Materials, 976273View Materials, 968581View Materials, 968586View Materials; PEV 0872, 0873, 0792, 0793)GoogleMaps  ; Claudia, Fazenda Continental, 11º25’07”S 55º19’42”W, 4 M, 1 F ( UFMT 3406, 3425, 3434, 3440, 3442, UFMT: TS 11)GoogleMaps  ; Cotriguaçu, Fazenda São Nicolau, 9º50’S, 58º15’W, 20 M, 2 F, 26? ( UFMT 1352, 1354, 1358-1360, 3514-3517, 3520, 3521, 3524, 3526, 3529-3531, 3538, 3542, 3543, 3544, 3548, 3549, 3550, 3553, 3556, 3560, 3563, 3566, 3567, 3572-3574, 3576, 3577, 3580, 3590, 3591, 3596, 3598, 3612, 3613, 3615, 3616, 3624, 3627, 3635, 3636, UFMT: MSN 39)GoogleMaps  ; Itaúba, UHE Colíder ( Rio Teles Pires ), 11º9’S, 55º34’W, 3 M, 1 F ( MZUSP: COM 88View Materials, 127View Materials, 248View Materials, 252View Materials)GoogleMaps  ; Juara, PCH São João da Barra , 10˚20’S, 57˚40’W, 1 F ( UFMT 1349)  ; Juruena, 10º19’S, 58º29’W, 1 M ( MZUSP: APC 187)GoogleMaps  ; Paranaíta, UHE Teles Pires, 9°35’S, 56°43’W, 17 M, 11 F, 4? ( MZUSP: TPA 10, 026-028View Materials, 036View Materials, 056View Materials; TPPC 015, 024, 025, 027, 028, 030, 042-044, 049, 051-053; 3TP 01, 05, 11, 12, 23, 27, 74, 75; 4TP 02, 06, 10, 12, 13)GoogleMaps  ; Sinop, 11°52’S, 55°30’W, 5 M ( UNEMAT: PRL 245View Materials, 345View Materials, 346View Materials, 373View Materials, 381View Materials)GoogleMaps  . Pará: Arapiuns, left bank of Rio Tapajós , 2°38’S, 55°27’W, 11 M, 3 F, 2? (UFPA-M 982-985, 990-992, 995-998, 1001, 1002, 1005, 1007, 1008)GoogleMaps  ; Boca do Rato, rigth bank of Rio Tapajós , 5º14’S, 56º56’W, 3 M, 1 F ( MPEG 1388View Materials, 1389View Materials, 1401View Materials, 1402View Materials)GoogleMaps  ; Bom Jardim, rigth bank of Rio Tapajós , 5°35’S, 57°7’W, 1 M, 1 F ( MPEG 1421View Materials, 1425View Materials)GoogleMaps  ; Canta Galo, rigth bank of Rio Tapajós , 05º48’S, 57º24’W, 5 M, 5 F, 3? ( MPEG 1281View Materials, 1285View Materials, 1288View Materials, 1289View Materials, 1292View Materials, 1296View Materials, 1301View Materials, 1413View Materials, 1478View Materials, 1498View Materials, 1642View Materials, 1664View Materials, 1681View Materials)GoogleMaps  ; Curuá, Santarém, rigth bank of Rio Tapajós , 2°50’S, 54°22’W, 1 F ( MPEG 10020View Materials)GoogleMaps  ; Itaituba, left bank of Rio Tapajós , 4°16’S, 55°59’W, 8M, 3 F ( MPEG 40311- 40316View Materials, MPEG: M005View Materials, 059View Materials, 060View Materials, 063View Materials, 081View Materials)GoogleMaps  ; Jacaré, rigth bank of Rio Tapajós , 5º41’S, 57º14’W, 4 M, 1 F, 1? ( MPEG 1412View Materials, 1442View Materials, 1509-1511View Materials, 1513View Materials)GoogleMaps  ; Jacareacanga, 09°22’S, 56°43’W, 12 F, 6 M, 1? ( UFMT 1419-1431, 1498 - 1500, 1501 [paratype], 1502, 1508 e 1531)GoogleMaps  ; Jatobá, left bank of Rio Tapajós , 5º08’S, 56º52’W, 4 M, 1 F ( MPEG 1208View Materials, 1373View Materials, 1381View Materials, 1556View Materials, 1719View Materials)GoogleMaps  ; Juriti, left bank of Rio Tapajós , 02º30’S, 56º11’W, 21 M, 9 F, 8? ( MPEG 38367View Materials, 38383View Materials, 38384View Materials, 38388View Materials, 38391View Materials, 38395View Materials, 38396View Materials, 38400-38403View Materials, 38409View Materials, 38410View Materials, 38424View Materials, 38426View Materials, 38428View Materials, 38509View Materials, 38519View Materials, 38521View Materials, 38522View Materials, 38678View Materials, 38680View Materials, 38681View Materials, 38683-38685View Materials, 38690View Materials, 40397-40399View Materials, MPEG: JUR 040View Materials, 044View Materials, 045View Materials, 048View Materials, 056View Materials, 61View Materials, 70View Materials; J 094)GoogleMaps  ; Novo Progresso, 7°44’S, 55°12’W, 3 M ( MPEG 39722View Materials, 39724View Materials, 79724View Materials)GoogleMaps  ; Palito, left bank of Rio Tapajós , 5°42’S, 57°22’W, 6 M, 2 F, 3? ( MPEG 1275View Materials, 1452View Materials, 1453View Materials, 1456View Materials, 1458View Materials, 1460View Materials, 1461View Materials, 1622View Materials, 1623View Materials, 1629View Materials, 1631View Materials)GoogleMaps  ; Parque Nacional da Serra do Pardo , 5°48’53”S, 52°59’38”W, 2 M, 2 F ( MPEG: SPM 05View Materials, 16View Materials, 28View Materials, 31View Materials)GoogleMaps  ; Penedo, left bank of Rio Tapajós , 05º27’S, 57º05’W, 3 M, 2 F ( MPEG: M 1232View Materials, 1408View Materials, 1415View Materials, MPEG: M054View Materials, 058View Materials)GoogleMaps  ; Penedo, rigth bank of Rio Tapajós , 5°34’S, 57°7’W, 2 M, 1? ( MPEG: M 1239View Materials, 1244View Materials, 1735View Materials)GoogleMaps  ; São Martins, rigth bank of Rio Tapajós , 6º07’S, 57º36’W, 1 M, 1? ( UFPA-M 1328, 1334)GoogleMaps  ; São Martins, left bank of Rio Tapajós , 6° 5’S, 57°40’W, 1M, 1F ( UFPA-M 1676, 1677)GoogleMaps  ; Terra Preta, left bank of Rio Tapajós , 05º35’S, 57º18’W, 2 F, 1 M, 3? ( MPEG 1433View Materials, 1434View Materials, 1591View Materials, 1592View Materials, 1594View Materials, 1595View Materials)GoogleMaps  ; Vitoria do Xingu , 2°53’S, 52°0’W, 4 F, 4 M, 4? ( MPEG 39751View Materials, 39752View Materials; MPEG: BML 054View Materials, 259View Materials, 458View Materials, 1153View Materials, 1154View Materials, 1207View Materials, 1208View Materials, 1223View Materials, 1224View Materials, 1414View Materials)GoogleMaps  . Rondônia: Chupinguaia, LT Jauru – Porto Velho, 12º13’S, 60º42’W, 10 M, 2 F ( UFMT 2965, 2966, 2969, 2972, 2973, 2977-2981; UFMT: LTJP 48, 57)GoogleMaps  ; Porto Velho, Estação Ecológica Antônio Mujica Nava, left bank of Rio Madeira , 9°24’50”S, 64°56’32”W, 2 M, 2 F ( MZUSP: MJ 19View Materials, 28View Materials, 32View Materials, 42View Materials)GoogleMaps  ; Porto Velho, 8°45’S, 63°54’W, 7 M, 4? ( MZUSP: MSAMAS 503; MSAFM 43; MSAMC 99, 120, 160, 165; MSASA 34, 113, 132; MSAMPP 31, 35)GoogleMaps  ; Vilhena, 12°43’S, 60°16’W, 2 F ( UFMT 1309, 1310)GoogleMaps  .

TABLE 4. Descriptive statistics for external and craniodental measurements (mm) and body mass (g) of adult females (young adults and mature adults) of Marmosops species included in this report, and measurements of holotypes. The measurements are presented as follows: mean ± standard deviation/min-max (sample size).

Variables M. marina  sp. nov. M. parvidens  M. pinheiroi  M. pinheiroi  a M. woodalli  M. woodalli  b
HBL 97,62 ±8,73 64 – 112 (35) 88,6 ±8,47 80–99 (5) 99,58 ±4,19 91 – 105 (12) 105 97,55 ±5,41 90,2 – 110 (12) 96
LT 132,58 ±8,25 120 – 160 (35) 134 ±5,29 126–140 (5) 132,08 ±5,86 120 – 145 (12) 145 135 ±6,03 125 – 143 (13) 144
Ear 20,27 ±2 16 – 25 (36) 18,4 ±2,7 15–21 (5) 18± 2,57 13 – 21 (12) 17 18,95 ±3,03 12 – 23 (15) 16
HF 14,9 ±1,64 10 – 20 (36) 15,8 ±2,94 14–21 (5) 17,83± 3,55 13 – 25 (12) 19 14,67 ±2,1 10–18 (14)
Weight 20,63 ±3,1 15,1 – 30 (35) 18,5 ±3,39 15–23,5 (5) 19,89 ±1,85 17 – 23 (11) 22 20,91 ±3,88 15 – 28 (12) 22
GLS 28,81 ±0,84 26,72 – 30,48 (44) 29,07 ±1,22 26,72–30,06 (6) 28,45 ±0,78 27,39 – 29,62 (12) 29,01 ±0,59 28,58 – 30,03 (5)
CBL 27,78 ±0,87 25,3 – 29,78 (44) 28,29 ±1,1 26,15–29,08 (6) 27,24 ±0,8 25,3 – 28,27 (12) 28,3 ±0,49 27,83 – 28,82 (5)
RL 11,88 ±0,55 11,04 – 13,26 (44) 12 ±0,53 11,05–12,56 (6) 11,87 ±0,31 11,22 – 12,29 (12) 11,89 ±0,47 11,2 – 12,39 (5)
NL 12,92 ±0,71 11,43 – 14,73 (44) 13,19 ±0,78 11,86–14,23 (6) 12,97 ±0,44 12,4 – 13,6 (12) 12,67 ±0,87 11,32 – 13,66 (5)
PL 15,69 ±0,52 14,45 – 16,85 (44) 16,03 ±0,66 14,71–16,5 (6) 15,35 ±0,43 14,45 – 15,96 (12) 15,99 ±0,27 15,64 – 16,37 (5)
MTR 11,38 ±0,35 10,21–11,99 (44) 11,35 ±0,3 10,75–11,55 (6) 11,05 ±0,35 10,21 – 11,5 (12) 11,52 ±0,28 11,05 – 11,74 (5)
UMS 5,7 ±0,17 5,13–5,99 (44) 5,59 ±0,11 5,49–5,77 (6) 5,56 ±0,18 5,13–5,88 (12) 5,7 ±0,15 5,51–5,91 (5)
LM4 0,83 ±0,07 0,58–0,95 (44) 0,78 ±0,06 0,72–0,89 (6) 0,78 ±0,09 0,58–0,88 (12) 0,78 ±0,07 0,72–0,86 (5)

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TABLE 5. Descriptive statistics for external and craniodental measurements (mm) and body mass (g) of adult males (young adults and mature adults) of Marmosops species in- cluded in this report, and measurements of holotypes. The measurements are presented as follows: mean ± standard deviation/min-max (sample size).

Variables M. marina  sp. nov M. marina  sp. nov a M. parvidens  M. pinheiroi  M. woodalli 
HBL 101,33 ±7,15 85–128 (75) 110 97,4 ±8,61 87-109 (5) 100,07 ±8,52 75–115 (28) 104,79 ±9,14 70–120 (41)
LT 140,52 ±8,3 120–161 (75) 150 129,2 ±21,28 93-147 (5) 144,24 ±8,39 130–167 (29) 143,33 ±11,09 92–158 (42)
Ear 20,21 ±2,74 13–27,9 (76) 28 19 ±2,54 16-23 (5) 17,72 ±3,37 11–24 (28) 20,53 ±3,42 12–28 (44)
HF 16,29 ±2,25 12–26,4 (74) 17 18,8 ±5,63 13-27 (5) 19,79 ±3,34 15–29 (29) 16,8 ±2,42 13–27 (44)
Weight 23,34 ±3,03 14,5–32 (76) 26 24,7 ±3,27 20-28,5 (5) 22,9 ±3,9 13–31 (27) 23,83 ±3,42 17,05– 30 (37)
GLS 29,74 ±0,83 31,05 29,47 ±1,14 29,96 ±0,6 29,65 ±0,94
  26,63–31,36 (104)   28,16-30,21 (3) 28,17–31 (22) 26,88–31,36 (57)
CBL 28,86 ±0,72 30,12 29,09 ±0,37 28,9 ±0,58 28,84 ±0,91
  26,33–30,27 (104)   28,7-29,44 (3) 27,4–29,93 (22) 26,33–30,27 (57)
RL 12,27 ±0,53 13,04 12,09 ±0,63 12,3 ±0,45 12,24 ±0,54
  10,35–13,33 (104)   11,41-12,65 (3) 11,23–13,18 (22) 10,95–13,33 (57)
NL 13,56 ±0,63 14,42 13,91 ±0,88 13,7 ±0,46 13,39 ±0,65
  10,68–14,81 (104)   12,92-14,6 (3) 12,58–14,6 (22) 11,74–14,7 (57)
PL 16,3 ±0,49 17,12 16,48 ±0,31 16,37 ±0,39 16,26 ±0,58
  14,7–17,2 (104)   16,17-16,79 (3) 15,51–17,13 (22) 14,83–17,32 (57)
MTR 11,49 ±0,26 12,15 11,58 ±0,18 11,51 ±0,29 11,45 ±0,3
  10,53–12,02 (104)   11,41-11,76 (3) 10,83–12,02 (22) 10,53–11,9 (57)
UMS 5,71 ±0,19 4,45–6,1 (104) 5,99 5,91 ±0,05 5,86-5,96 (3) 5,74 ±0,16 5,46–6,1 (22) 5,66 ±0,17 5,34–6,03 (57)
LM4 0,82 ±0,06 0,92 0,82 ±0,04 0,83 ±0,05 0,78 ±0,06
  0,65–0,96 (104)   0,79-0,87 (3) 0,74–0,93 (22) 0,65–0,92 (57)

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R

Departamento de Geologia, Universidad de Chile

V

Royal British Columbia Museum - Herbarium

T

Tavera, Department of Geology and Geophysics

MZUSP

Museu de Zoologia da Universidade de Sao Paulo

UFMT

Universidade Federal de Mato Grosso

MPEG

Museu Paraense Emilio Goeldi