Leptochelia, Dana, 1849

Abarca-Ávila, Mónica Mariel, Herrera-Dorantes, María Teresa, Winfield, Ignacio & Ardisson, Pedro-Luis, 2019, Updated checklist and identification key of benthic tanaidaceans (Crustacea Peracarida) of the sublittoral zone of the northern Yucatan Peninsula, Mexico, Zootaxa 4711 (1), pp. 51-76 : 67-68

Leptochelia sp. aff. savignyi ( Krøyer 1842)

( Fig. 4 J–K)

Examined material. TA: 1111 individuals. CNCR 34799 . Tr-Loc: M41- Celestun, Yucatan , Mexico 20°51’43.56’’N 90°24’4.179’’W, one ♀, one ♀ o, one ♀ m, 7 May 2005, 26 November 2005, 11 March 2006, coll. AV, SP ; Tr-Loc: M43-Celestun, Yucatan, Mexico 21°3’53.319’’N 90°14’57.728’’W, five ♀, 7 May 2005, 26 November 2005, 11 March 2006, coll. AV, SP ; Tr-Loc: M44- El Palmar, Yucatan, Mexico 21°7’31.09’’N 90°9’6.3’’W, one ♀, one ♀ o, two ♀ m, one ♂, 7 May 2005, 26 November 2005, 11 March 2006, coll. AV, SP ; Tr-Loc: M46-Chuburna, Yucat- an, Mexico 21°15’21.6’’N 89°50’20.288’’W, one ♂, 8 May 2005, 27 November 2005, 12 March 2006, coll. AV, SP ; Tr-Loc: M47-Progreso, Yucatan, Mexico 21°17’25.689’’N 89°38’48.699’’W, 14 ♀, two ♀ m, one juv, 8 May 2005, 27 November 2005, 12 March 2006, coll. AV, SP ; Tr-Loc: M49-Telchac, Yucatan, Mexico 21°20’41.1’’N 89°15’53.236’’W, seven ♀, one ♀ o, 8 May 2005, 27 November 2005, 12 March 2006, coll. AV, SP ; Tr-Loc: M50- Chabihau, Yucatan, Mexico 21°22’4.329’’N 89°4’13.659’’W, 131 ♀, two ♀ o, 20 ♀ m, five ♂, 20 juv, 15 man., 20 May 2005, 27 November 2005, 12 March 2006, coll.AV, SP ; Tr-Loc: M51-Santa Clara, Yucatan, Mexico 21°23’41.709’’N 88°53’21.159’’W, 284 ♀, one ♀ o, 56 ♀ m, two ♂, 31 juv, seven man., 20 May 2005, 27 November 2005, 12 March 2006, coll. AV, SP ; Tr-Loc: M52-Dzilam, Yucatan, Mexico 21°25’57.859’’N 88°44’7.216’’W, 15 ♀, two ♀ m, one ♂, four juv, two man., 15 May 2005, 13 November 2005, 13 March 2006, coll. AV, SP ; Tr-Loc: M53-Dzilam, Yu- catan, Mexico 21°30’24.619’’N 88°38’1.679’’W, one ♀, one juv, 15 May 2005, 13 November 2005, 13 March 2006, coll. AV, SP ; Tr-Loc: M54-Dzilam, Yucatan, Mexico 21°32’35.659’’N 88°29’57.616’’W, 119 ♀, seven ♀ m, one ♂, seven juv, three man., 15 May 2005, 13 November 2005, 13 March 2006, coll. AV, SP ; Tr-Loc: M55-Dzilam, Yucatan, Mexico 21°34’3.9’’N 88°22’39.608’’W, 189 ♀, 22 ♀ m, three ♂, 41 juv, 27 man., 15 May 2005, 13 November 2005, 13 March 2006, coll. AV, SP ; Tr-Loc: M56-San Felipe, Yucatan, Mexico 21°34’32.739’’N 88°14’24.248’’W, 21 ♀, eight ♀ m, one ♂, two juv, 16 May 2005, 12 November 2005, 18 March 2006, coll. AV, SP ; Tr-Loc: M57- Rio Lagartos , Yucatan, Mexico 21°37’6.019’’N 88°5’36.016’’W, 17 ♀, two ♀ m, 16 May 2005, 12 November 2005, 18 March 2006, coll. AV, SP ; Tr-Loc: M60- El Cuyo, Yucatan, Mexico 21°31’8.259’’N 87°40’41.588’’W, two ♀, 16 May 2005, 12 November 2005, 18 March 2006, coll. AV, SP ; collected at depths of 0.2–4 m, in coarse sand, medium sand, fine sand, and very fine sand, with Caulerpa , H. wrightii , Syringodium and T. testudinum

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Local distribution. ( Table 1 , Fig. 2 ).

Geographical distribution. Entire GoM; Caribbean Sea: Puerto Morelos Reef National Park and the coast of Quintana Roo; considered as cosmopolitan inhabiting in warm, temperate and boreal regions.

Recognition characters. Female: antennule with three articles; uropodal endopod with six articles, exopod shorter than the first article of endopod. Male: length of the antennule and extended chelipeds of almost two-thirds of the total length of the body; chelipedal fixed finger with two teeth on cutting edge; uropodal endopod with four to six articles.

Remarks. It inhabits between 0 and 200 m perpendicular to the shoreline, on coral reefs, associated with sponges such as A. clathrodes , A. crassa , A. fistularis , C. nucula , Clathria (Clathria) carteri Topsent , C. (Microciona) echinata , D. anchorata , G. neptuni , I. birotulata , Ircinia felix (Duchassaing & Michelotti) , I. strobilina and M. arbuscula , algae such as Amphiroa fragilissima (Linnaeus) J.V. Lamouroux , B. tenella , Callithamnion corymbosum (Smith) Lyngbye, C. cervicornis , C. racemosa , C. dasyphylla , Chnoospora minima (Hering) Papenfuss , D. delicatula , D. dichotoma , Dichotomaria obtusata (J. Ellis & Solander) Lamarck , H. spinella , Laurencia obtusa (Hudson) J.V. Lamouroux , Rhipocephalus Kützing , S. natans , Udotea , U. lactuca , barnacles ( A. amphitrite ), cnidarians ( P. guadalupensis ), seagrasses ( T. testudinum ), coral rubble, in wood and in soft bottoms, at depths 0 to 50 m but even to 300 m depth.

References. Heard et al. (2004); Suárez-Morales et al. (2004); Winfield et al. (2007a); Heard & Anderson (2009); Heard et al. (2009); Bamber (2010); Winfield et al. (2013); García-Madrigal et al. (2005); Jarquín-González et al. (2015); Guţu (2016); Monroy-Velázquez et al. (2017); Winfield et al. (2017), Cházaro-Olvera et al. (2018); Stępień et al. (2018).

Figures

FIGURE 2. Diversity, abundance, and distribution of tanaidaceans of the sublittoral zone of the northern Yucatan Peninsula.

FIGURE 4. Tanaidaceans species of the sublittoral zone of the northern Yucatan Peninsula, suborder Tanaidomorpha. (A) Parakonarus juliae ♀; (B) P. juliae ♂; (C) Alloleptochelia longimana ♀; (D) A. longimana ♂; (E) Cacoheterotanais rogerbamberi ♀; (F) Hargeria rapax ♀; (G) H. rapax ♂; (H) Leptochelia forresti ♀; (I) L. forresti ♂; (J) Leptochelia sp. aff. savignyi ♀; (K) L. sp. aff. savignyi ♂; (L) Zeuxo cf. kurilensis ♀; (M) Z. cf. kurilensis ♂.