taxonID	type	description	language	source
03C7879FFFFFFFC29A743F960DD7467B.taxon	description	Despite some recent studies (e. g. Köhler et al., 2012; Torres-Carvajal & Lobos, 2014; Ribeiro-Júnior & Amaral, 2017; Ribeiro-Júnior, 2018), the taxonomy of A. angulatus requires further resolution based on denser geographical sampling and integrative taxonomy approaches. Here, we present the results of a major revision of the widespread A. angulatus, in which we account for morphological and molecular variation to survey the distinctiveness and intraspecific structure. We include the description of two new species, resurrection of three species (with redescription of the holotypes), the first redescription of the neotype of A. angulatus and the recognition of two differentiated lineages as putative species, with a key to the species of Alopoglossus.	en	Ribeiro-Júnior, Marco Antonio, Choueri, Erik, Lobos, Simon, Venegas, Pablo, Torres-Carvajal, Omar, Werneck, Fernanda (2019): Eight in one: morphological and molecular analyses reveal cryptic diversity in Amazonian alopoglossid lizards (Squamata: Gymnophthalmoidea). Zoological Journal of the Linnean Society 190: 227-270
03C7879FFFF6FFCA99933D9B0D5A4408.taxon	description	[FIGS 2 – 4 (A. ANGULATUS ‘ EAST’); FIGS 5, 6, 7 A; TABLES 1 AND 2]	en	Ribeiro-Júnior, Marco Antonio, Choueri, Erik, Lobos, Simon, Venegas, Pablo, Torres-Carvajal, Omar, Werneck, Fernanda (2019): Eight in one: morphological and molecular analyses reveal cryptic diversity in Amazonian alopoglossid lizards (Squamata: Gymnophthalmoidea). Zoological Journal of the Linnean Society 190: 227-270
03C7879FFFF6FFCA99933D9B0D5A4408.taxon	materials_examined	Material examined: Two hundred (N = 200) referred specimens for morphological analyses and 21 samples for molecular analyses from Brazil, French Guiana, Guyana and Suriname (see Supporting Information; Appendix S 2, Table S 1). Diagnosis Alopoglossus angulatus is distinguished from all other species of Alopoglossus by the combination of the following characters: (1) scales on sides of neck non-granular, keeled, imbricate (at least medial and posterior ones phylloid), in six to nine transverse rows; (2) three pairs of chin shields; (3) third pair of chin shields with rounded posterior margins, in direct contact with gulars or separated from them by a row of small scales; (4) absence of a pair of medial enlarged pregular scales; (5) scales on gular region subequal in size, but varying in shape: lateral ones strongly keeled, pointed, phylloid; anterior, medial and posterior ones varying from smooth to feebly keeled, phylloid; anteriormost transverse row with scales varying from smooth to feebly keeled, almost rounded posteriorly and varying from similar in size to slightly smaller than those in the proceeding rows; (6) ventral scales feebly keeled, mucronate, imbricate, with bluntly pointed posterior margins; (7) total number of femoral pores in males 20 – 29.	en	Ribeiro-Júnior, Marco Antonio, Choueri, Erik, Lobos, Simon, Venegas, Pablo, Torres-Carvajal, Omar, Werneck, Fernanda (2019): Eight in one: morphological and molecular analyses reveal cryptic diversity in Amazonian alopoglossid lizards (Squamata: Gymnophthalmoidea). Zoological Journal of the Linnean Society 190: 227-270
03C7879FFFF1FFCD999538EA0AAA42B7.taxon	description	[FIGS 2 – 4 (A. ANGULATUS ‘ G. MIRIM’), FIGS 7 B, C, 8, 9; TABLES 1 AND 2]	en	Ribeiro-Júnior, Marco Antonio, Choueri, Erik, Lobos, Simon, Venegas, Pablo, Torres-Carvajal, Omar, Werneck, Fernanda (2019): Eight in one: morphological and molecular analyses reveal cryptic diversity in Amazonian alopoglossid lizards (Squamata: Gymnophthalmoidea). Zoological Journal of the Linnean Society 190: 227-270
03C7879FFFF1FFCD999538EA0AAA42B7.taxon	materials_examined	Holotype: UMMZ 5 6 8 5 3, male, Brazil, VILLA MURTINHO, MATTO GROSSO (= VILA MURTINHO, Nova Mamoré municipality, State of RONDÔNIA; 10 ° 23 ′ 58.6 ″ S, 65 ° 21 ′ 51.8 ″ W), 6 APRIL 1922, JESSE Williamson (Figs 8, 9). Material examined: Twenty-seven (N = 27) referred specimens for morphological analyses and one sample for molecular analyses from Brazil (see Supporting Information; Table S 1 and Referred Specimens). Diagnosis Alopoglossus amazonius is distinguished from all other species of Alopoglossus by the combination of the following characters: (1) scales on sides of neck non-granular, keeled, imbricate (at least medial and posterior ones phylloid), in nine to 13 transverse rows; (2) four pairs of chin shields; (3) third pair of chin shields irregularly trapezoidal, separated from gulars by large scales; (4) absence of a pair of medial enlarged pregular scales; (5) scales on gular region varying in shape and size: lateral ones strongly keeled, pointed, phylloid; anterior and medial ones varying from smooth to feebly keeled, phylloid; posterior ones varying from smooth to feebly keeled, almost rounded posteriorly, larger than lateral, anterior and medial ones; (6) ventral scales mucronate, imbricate, with bluntly pointed posterior margins (almost rounded), varying from smooth to feebly keeled; (7) total number of femoral pores in males 24 – 28.	en	Ribeiro-Júnior, Marco Antonio, Choueri, Erik, Lobos, Simon, Venegas, Pablo, Torres-Carvajal, Omar, Werneck, Fernanda (2019): Eight in one: morphological and molecular analyses reveal cryptic diversity in Amazonian alopoglossid lizards (Squamata: Gymnophthalmoidea). Zoological Journal of the Linnean Society 190: 227-270
03C7879FFFECFFD099B13B9C0C214080.taxon	description	[FIGS 4 (A. ANGULATUS ‘ WESTERNMOST’), 7 D, 10, 11; TABLES 1 AND 2]	en	Ribeiro-Júnior, Marco Antonio, Choueri, Erik, Lobos, Simon, Venegas, Pablo, Torres-Carvajal, Omar, Werneck, Fernanda (2019): Eight in one: morphological and molecular analyses reveal cryptic diversity in Amazonian alopoglossid lizards (Squamata: Gymnophthalmoidea). Zoological Journal of the Linnean Society 190: 227-270
03C7879FFFECFFD099B13B9C0C214080.taxon	materials_examined	Holotype: MCZ 45590, male, Peru, LA PAMPA, DEPARTMENT OF PUNO (13 ° 39 ′ S, 69 ° 36 ′ W), AT AN ELEVATION OF 760 M A. S. L., 23 JANUARY 1940, G. P. Gardner (Figs 10, 11). Diagnosis Alopoglossus andeanus is distinguished from all other species of Alopoglossus by the combination of the following characters: (1) scales on the sides of the neck non-granular, keeled, imbricate (at least medial and posterior ones phylloid), in 11 or 12 transverse rows; (2) three pairs of chin shields; (3) third pair of chin shields with rounded posterior margins, in direct contact with gulars; (4) presence of a pair of medial enlarged pregular scales; (5) scales on gular region varying in shape and size: lateral ones strongly keeled, pointed, phylloid; anterior, medial and posterior ones varying from smooth to feebly keeled, bluntly pointed; medial and posterior ones larger than anterior and lateral ones; (6) ventral scales smooth, mucronate, imbricate, with bluntly pointed posterior margins; (7) total number of femoral pores in males 24 – 28.	en	Ribeiro-Júnior, Marco Antonio, Choueri, Erik, Lobos, Simon, Venegas, Pablo, Torres-Carvajal, Omar, Werneck, Fernanda (2019): Eight in one: morphological and molecular analyses reveal cryptic diversity in Amazonian alopoglossid lizards (Squamata: Gymnophthalmoidea). Zoological Journal of the Linnean Society 190: 227-270
03C7879FFFE9FFD49A293A600AB84636.taxon	description	[FIGS 2 – 4 (A. ANGULATUS ‘ WEST’), FIGS 7 E – G, 12, 13; TABLES 1 AND 2] LSID: urn: lsid: zoobank. org: act: 0 C 29 C 5 C 2 - 168 E- 490 F-A 9 C 1 - 5 C 44 AC 6 A 0553	en	Ribeiro-Júnior, Marco Antonio, Choueri, Erik, Lobos, Simon, Venegas, Pablo, Torres-Carvajal, Omar, Werneck, Fernanda (2019): Eight in one: morphological and molecular analyses reveal cryptic diversity in Amazonian alopoglossid lizards (Squamata: Gymnophthalmoidea). Zoological Journal of the Linnean Society 190: 227-270
03C7879FFFE9FFD49A293A600AB84636.taxon	materials_examined	Holotype: INPA-H 9515, male, BRAZIL, STATE OF AMAZONAS, Maraã municipality, Amanã, Baré (2 ° 28 ′ 54.95 ″ S, 64 ° 42 ′ 36.98 ″ W), 5 February 2001, Etymology The specific epithet is a noun in the genitive case honoring Teresa Cristina Sauer de Ávila-Pires, in recognition of her valuable contribution to the knowledge of the Amazonian lizards. The first author of this study (M. A. R. - J.) expresses his great appreciation to T. Ávila-Pires for her valuable and constructive contribution to his personal and professional development. Ana Cristina de Oliveira Cordeiro Duarte, field number RCV 01 - 322 (Figs 12, 13). Paratypes: BRAZIL: State of Amazonas: INPA-H 9514, Amanã, Baré (2 ° 28 ′ 54.9 ″ S, 64 ° 42 ′ 37 ″ W), 30 January 2001, Duarte, field number RCV 01 - 274; INPA-H 9394, Amanã, Boa Esperança (2 ° 29 ′ 17.6 ″ S, 64 ° 45 ′ 12.9 ″ W), 1 February 2001, Duarte, field number RCV 01 - 292; INPA-H 9382, Amanã, Boa Vista (2 ° 20 ′ 32.7 ″ S, 64 ° 51 ′ 33.8 ″ W), 12 January 2001, Duarte, field number RCV 01 - 74; INPA-H 11112, 11119, two females, Maraã, Mamirauá Sustainable Development Reserve, Paraná Trail (2 ° 21 ′ 42.68 ″ S, 65 ° 15 ′ 35.45 ″ W), 9 September 2003 and 6 September 2006, Bernhard. Material examined: Fifty-eight (N = 58) referred specimens for morphological analyses from Brazil, Colombia and Peru and one sample for molecular analyses from Peru (see Supporting Information; Appendix S 2, Table S 1). Diagnosis Alopoglossus avilapiresae is distinguished from all other species of Alopoglossus by the combination of the following characters: (1) scales on the sides of the neck non-granular, keeled, imbricate (at least medial and posterior ones phylloid), in ten to 13 transverse rows; (2) three pairs of chin shields; (3) third pair of chin shields with rounded posterior margins, in direct contact with gulars or separated from them by a row of small scales; (4) absence of a pair of medial enlarged pregular scales; (5) scales on gular region subequal in size, but varying in shape: lateral ones strongly keeled, pointed, phylloid; anterior, medial and posterior ones feebly keeled, bluntly pointed; anteriormost transverse row with scales smooth, almost rounded posteriorly, and varying from similar in size to slightly smaller than those in the proceeding rows; (6) ventral scales mucronate, imbricate, with bluntly pointed posterior margins (almost rounded), varying from smooth to feebly keeled; (7) total number of femoral pores in males 23 – 29.	en	Ribeiro-Júnior, Marco Antonio, Choueri, Erik, Lobos, Simon, Venegas, Pablo, Torres-Carvajal, Omar, Werneck, Fernanda (2019): Eight in one: morphological and molecular analyses reveal cryptic diversity in Amazonian alopoglossid lizards (Squamata: Gymnophthalmoidea). Zoological Journal of the Linnean Society 190: 227-270
03C7879FFFE5FFD89A0C3F5E0BCC46B0.taxon	description	[FIGS 2 – 4 (A. ANGULATUS ‘ ECUADOR’), 7 I, J, 14, 15; TABLES 1 AND 2]	en	Ribeiro-Júnior, Marco Antonio, Choueri, Erik, Lobos, Simon, Venegas, Pablo, Torres-Carvajal, Omar, Werneck, Fernanda (2019): Eight in one: morphological and molecular analyses reveal cryptic diversity in Amazonian alopoglossid lizards (Squamata: Gymnophthalmoidea). Zoological Journal of the Linnean Society 190: 227-270
03C7879FFFE5FFD89A0C3F5E0BCC46B0.taxon	materials_examined	Holotype: ANSP 11371, male, Marañon, Orton Expedition. Type locality restricted by Ruibal (1952) to Valley of the Marañon River, Peru, but here corrected and restricted to Santa Rosa de Otas, Department of Napo, Ecuador (upper Napo River; 0 ° 58 ′ 41.2 ″ S, 77 ° 27 ′ 4.4 ″ W; see comments in Remarks below) (Figs 14, 15). Material examined: Six referred specimens for morphological analyses from Ecuador and Peru and 17 samples for molecular analyses from Ecuador (see Supporting Information; Appendix S 2, Table S 1). Diagnosis Alopoglossus carinicaudatus is distinguished from all other species of Alopoglossus by the combination of the following characters: (1) scales on the sides of the neck non-granular, keeled, imbricate (at least medial and posterior ones phylloid), in 11 or 12 transverse rows; (2) three pairs of chin shields; (3) third pair of chin shields irregularly quadrangular (anterior and posterior margins almost parallel), with straight posterior margins, separated from gulars by a row of small scales; (4) absence of a pair of medial enlarged pregular scales; (5) scales on gular region subequal in shape and size: lateral, anterior, medial and posterior ones strongly keeled, pointed, phylloid; anteriormost transverse row feebly keeled; (6) ventral scales mucronate, imbricate, with bluntly pointed posterior margins, varying from strongly keeled on anterior and lateral surfaces to feebly keeled on medial and posterior surfaces; and (7) total number of femoral pores in males 22 – 26.	en	Ribeiro-Júnior, Marco Antonio, Choueri, Erik, Lobos, Simon, Venegas, Pablo, Torres-Carvajal, Omar, Werneck, Fernanda (2019): Eight in one: morphological and molecular analyses reveal cryptic diversity in Amazonian alopoglossid lizards (Squamata: Gymnophthalmoidea). Zoological Journal of the Linnean Society 190: 227-270
03C7879FFFE1FFDC9AC23C0C0ABB47C0.taxon	description	[FIGS 2 – 4 (A. ANGULATUS ‘ SOUTH’), 7 H, 16, 17; TABLES 1 AND 2] LSID: urn: lsid: zoobank. org: act: F 30 F 039 E- 935 C- 4 D 6 D-BDFD-FCDF 5 E 160 BD 2 Holotype: CHUNB 18038, female, Brazil, State of Rondônia, Pimenta Bueno (11 ° 51 ′ 45.2 ″ S, 60 ° 56 ′ 18 ″ W), between 1 July and 24 August 2000, Guarino Colli, field number GRCOLLI 5572 (Figs 16, 17). Paratypes: Brazil: State of Mato Grosso: UFMT 4105, PCH Ombreiras Margem direita do Rio Jauru (15 ° 19 ′ 2.3 ″ S, 58 ° 51 ′ 42.8 ″ W); State of Rondônia: CHUNB 18037, CHUNB 18039 – 18040 and CHUNB 18599, males, Pimenta Bueno (11 ° 51 ′ 45.2 ″ S, 60 ° 56 ′ 18 ″ W), between 1 July and 24 August 2000, Colli, field numbers GRCOLLI 5816, 5757, 5681 and 5684, respectively; CHUNB 11472, male, Vilhena 258 M. A. RIBEIRO-JÚNIOR ET AL. (12 ° 07 ′ 19.1 ″ S, 60 ° 16 ′ 39.1 ″ W), between 20 August and 22 September 1999, Mesquita, field number GRCOLLI 4041. Material examined: Three referred specimens for morphological analyses and five samples for molecular analyses from Brazil (see Supporting Information; Appendix S 2, Table S 1). Etymology The specific epithet is a noun in the genitive case honouring herpetologist Guarino Rinaldi Colli in recognition of his valuable contribution to the knowledge on the lizards of the Cerrado, especially in the State of Rondônia, Brazil. Diagnosis Alopoglossus collii is distinguished from all other species of Alopoglossus by the combination of the following characters: (1) scales on the sides of the neck non-granular, keeled, imbricate (at least medial and posterior ones phylloid), in eight or nine transverse rows; (2) three pairs of chin shields; (3) third pair of chin shields with rounded posterior margins, in direct contact with gulars or separated from them by small scales; (4) absence of a pair of medial enlarged pregular scales (see Remarks below); (5) scales on gular region varying in shape and size: lateral ones strongly keeled, pointed, phylloid (except the anterior ones); the first three anterior transverse rows with scales smooth, almost rounded, larger than those in the proceeding row (anteriormost row with the largest scales); medial and posterior ones smooth, almost rounded, bluntly pointed, larger than lateral ones; (6) ventral scales mucronate, imbricate, with bluntly pointed posterior margins, varying from smooth to feebly keeled; (7) total number of femoral pores in males 19 – 22.	en	Ribeiro-Júnior, Marco Antonio, Choueri, Erik, Lobos, Simon, Venegas, Pablo, Torres-Carvajal, Omar, Werneck, Fernanda (2019): Eight in one: morphological and molecular analyses reveal cryptic diversity in Amazonian alopoglossid lizards (Squamata: Gymnophthalmoidea). Zoological Journal of the Linnean Society 190: 227-270
