taxonID	type	description	language	source
038FB9302115FFC56E53A265FB8316EF.taxon	description	The genus Anuropodione Bourdon, 1967 has a widespread distribution, occurring in all oceans, especially in relatively deep waters around 200 – 700 m (Williams and Brown, 1972; Wenner and Windsor, 1979), and is composed of five species: A. amphiandra (Codreanu, Codreanu and Pike, 1966), A. carolinensis Markham, 1974, A. dubius (Nierstrasz and Brender à Brandis, 1929), A. megacephalon Markham, 1974 and A. senegalensis Bourdon, 1967 (Boyko et al., 2008 onwards). To date, species of Anuropodione have only been recorded as parasites of squat lobsters, especially those belonging to the genus Munida (Williams and Brown, 1972; Markham, 1974; Wenner and Windsor, 1979); the host of A. dubius is not certain as it was given as “ Galathea spec. ” by Nierstrasz and Brender à Brandis (1929). Despite wide distribution of the genus, no species of Anuropodione has ever been recorded from the South Atlantic. In this paper we report the first occurrence of the genus Anuropodione and the species A. carolinensis Markham, 1974 collected as a parasite of the squat lobsters M. iris A. Milne-Edwards, 1880, from Brazilian waters in the South Atlantic. The sampling was carried out on the continental slope of Potiguar Basin, located in the northeast of Brazil (03 / 05 ° S, 38 / 35 ° W), covering the states of Ceará (CE) and Rio Grande do Norte (RN). Specimens were collected on board the R / V Seward Johnson in May 2011, as part of the project Avaliação da biota bentônica e planctônica da Bacia Potiguar e Ceará (Bpot) coordinated by Petróleo Brasileiro S / A (Petrobras). Bottom trawls were carried out on the continental slope between 150 and 2068 m depth using a semiballoon otter trawl with 50 mm mesh size and 18 m of mouth opening. After sampling, specimens were fixed in 70 % ethanol, with parasites initially identified to species following Markham (1974) and deposited in the carcinological collection of the “ Museu de Oceanografia Prof. Petrônio Alves Coelho (MOUFPE) ” at the Federal University of Pernambuco in Recife, Brazil. The following body measurements were taken with a caliper (0.01 mm): total length (TL) (for M. iris and A. carolinensis); carapace length (CL) and carapace width (CW) (for M. iris); maximum pereon width (W) (for A. carolinensis).	en	Boyko Ricardo José de Carvalho Paiva Aurinete Oliveira Negromonte Jesser Fidelis de Souza-Filho, Flavio de Almeida Alves-Júnior Christopher B. (2019): First record of the genus Anuropodione Bourdon, 1967 (Crustacea: Isopoda: Bopyridae) from the South Atlantic. Nauplius (e 2019003) 27: 1-7, DOI: 10.1590/2358-2936e2019003, URL: https://doi.org/10.1590/2358-2936e2019003
038FB9302114FFC16F75A114FCF211CB.taxon	description	(Figs. 1 – 4)	en	Boyko Ricardo José de Carvalho Paiva Aurinete Oliveira Negromonte Jesser Fidelis de Souza-Filho, Flavio de Almeida Alves-Júnior Christopher B. (2019): First record of the genus Anuropodione Bourdon, 1967 (Crustacea: Isopoda: Bopyridae) from the South Atlantic. Nauplius (e 2019003) 27: 1-7, DOI: 10.1590/2358-2936e2019003, URL: https://doi.org/10.1590/2358-2936e2019003
038FB9302114FFC16F75A114FCF211CB.taxon	materials_examined	Host material examined. Brazil: 1 female (28.26 mm TL, 25.41 mm CL; 23.37 mm CW), 1 male (22.69 mm TL, 20.24 mm CL, 17.11 mm CW), Potiguar Basin, # MT – 61, 04 ° 47.83 ’ S 36 ° 11.02 ’ W, 418 m, temperature 8.15 ° C, 08. v. 2011 (MOUFPE 17607) (Fig. 1); 2 females (18.25 – 28.3 mm TL, 16.69 – 25.38 mm CL, 13.07 – 22.24 mm CW), 4 males (20.52 – 26.89 mm TL, 18.45 - 24.01 mm CL, 15.58 – 17.98 mm CW), Potiguar Basin, # MT – 62, 04 ° 43.89 ’ S 36 ° 25.62 ’ W, 415 m, temperature 7.56 ° C, 07. v. 2011 (MOUFPE 17608); 9 females (20.52 – 26.89 mm TL, 16.86 – 24.09 mm CL, 9.19 – 18.84 mm CW), 7 males (17.21 – 28.47 mm TL, 15.61 – 25.89 mm CL, 14.86 – 20.31 mm CW), Potiguar Basin, # MT – 64, 04 ° 36.24 ’ S, 36 ° 45.73 ’ W, 416 m, temperature 7.47 ° C, 12. v. 2011 (MOUFPE 17609). Parasite material examined. Brazil: 2 females (10.3 – 12.4 mm TL, 5.2 – 6.3 mm W), 2 males (3.4 – 4.2 mm TL, 2.5 – 3.1 mm W), Potiguar Basin, # MT – 61, 04 ° 47.83 ’ S 36 ° 11.02 ’ W, 418 m, temperature 8.15 ° C, 08. v. 2011 (MOUFPE 18874); 6 females (10.4 – 11.3 mm TL, 4.1 – 5.8 mm W), 6 males (2.6 – 3.4 mm TL, 2.1 – 2.8 mm W), Potiguar Basin, # MT – 62, 04 ° 43.89 ’ S 36 ° 25.62 ’ W, 415 m, temperature 7.56 ° C, 07. v. 2011 (MOUFPE 18875); 16 females (10.5 – 12.9 mm TL, 4.7 – 5.3 mm W), 16 males (2.8 – 3.1 mm TL, 2.3 – 2.9 mm W), Potiguar Basin, # MT – 64, 04 ° 36.24 ’ S 036 ° 45.73 ’ W, 416 m, temperature 7.47 ° C, 12. v. 2011 (MOUFPE 18876). Diagnosis. Female: Body ovate, all segments and body regions distinct. Head with large frontal lamina; anterior margin smooth; eyes absent. Antennula with two articles, antenna of four articles. Maxilliped without palp; barbula with two smooth, falcate, lateral projections, median region smooth. Large coxal plates on all pereomeres; dorsolateral bosses on pereomeres 1 – 4; oostegite 1 posterior segment shorter than anterior, with few lobes on inner margin. Posterior pereopods much larger than anterior ones; bases with expanded dorsal carinae. Pleomeres tapering posteriorly; lateral plates present on pleomeres 1 – 4; pleotelson bulbous; biramous pleopods on pleomeres 1 – 5; uropods lacking. Male: Pereon widest at pereomere 5, tapering anteriorly and posteriorly; all segments distinct. Antennula of two – three articles, antenna of three-five articles. Pereopods subequal in size and shape. Pleon with segmentation ranging from all segments fused to six distinct segments; pleopods and uropods absent. Distribution. Western Atlantic: United States (North Carolina and Gulf of Mexico) and Brazil (Potiguar Basin, Rio Grande do Norte) (Markham, 1974; Wenner, 1982; present study) (Fig. 4). Remarks. A total of 416 specimens of M. iris were collected in Potiguar Basin, comprising 24 hosts (5.77 %) bearing A. carolinensis in the branchial chambers (Fig. 1), females (Fig. 2 A – I) of which conformed in all characters with the description of Markham (1974). Markham (1974) stated that the antennae of females bear two articles, but this appears to have been an error because all our specimens have antennae with four articles (Fig. 2 D). Additionally, all the male specimens we dissected had two or three antennular and three antennal articles, while Markham (1974) reported three antennular and five antennal articles. Parasitization most frequently occurred in adult hosts without distinction as to the sex of the host (12 females and 12 males). A total of 24 males of A. carolinensis were examined, of which 33 % (n = 8) had only a single pleomere (Fig. 3 C, D), 46 % (n = 11) had four pleomeres (including the pleotelson) and 21 % (n = 5) had six pleomeres (including the pleotelson; Fig. 3 A, B). Previous examination of A. carolinensis males were made by Markham (1974) and Wenner and Windsor (1979), which revealed variability in the number of pleomeres with one, three, and six pleomeres being recorded; the single pleomere condition was by far the most common and very few specimens were found bearing three pleomeres. In contrast, our samples showed the most common condition as being four pleomeres for males of A. carolinensis. The presence of four pleomeres on males of this species and, in fact, on males of any species of Anuropodione was previously unknown (Boyko et al., 2018). Records of parasitism on M. iris by A. carolinensis were previously observed by Markham (1974) from North Carolina (35 ° 05 ’ N, 75 ° 11 ’ W), Wenner and Windsor (1979) from Norfolk Canyon (36 ° 56 ’, 37 ° 09 ’ N, 75 ° 06 ’, 74 ° 33 ’ W) and Wenner (1982) in Norfolk Canyon (36 ° 56 ’, 37 ° 09 ’ N) and Tom’s Canyon (38 ° 18 ’, 39 ° 10 ’ N), however, M. iris is also parasitized by Munidion irritans Boone, 1927 (Bursey, 1978). All of the specimens of M. iris examined herein were parasitized by individuals of both sexes of A. carolinensis (female and male pair), which were observed occurring in M. iris only at a depth of 400 m in Potiguar Basin. The depth range of parasites of A. carolinensis follow the bathymetric distribution of their hosts and, as the species of M. iris can be found in depths up to 1303 m (Melo-Filho, 2006). Anuropodione carolinensis is potentially present along a similar large depth range, although it has so far only been reported from 83 – 662 m (Boyko et al., 2012). In the western Atlantic, M. iris has a large geographic distribution, occurring from the United States to Uruguay, and in Brazilian waters from Potiguar Basin (present record), Alagoas, Bahia, São Paulo and Rio Grande do Sul (Melo, 1999; Melo-Filho, 2006; Serejo et al., 2007), however, despite of this wide host distribution, A. carolinensis has previously only been recorded from the southeastern United States and the Gulf of Mexico, and is only now known from Brazilian waters in the south Atlantic.	en	Boyko Ricardo José de Carvalho Paiva Aurinete Oliveira Negromonte Jesser Fidelis de Souza-Filho, Flavio de Almeida Alves-Júnior Christopher B. (2019): First record of the genus Anuropodione Bourdon, 1967 (Crustacea: Isopoda: Bopyridae) from the South Atlantic. Nauplius (e 2019003) 27: 1-7, DOI: 10.1590/2358-2936e2019003, URL: https://doi.org/10.1590/2358-2936e2019003
