Mesokalliapseudes macsweenyi Drumm, 2003

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 : 56

♦ Mesokalliapseudes macsweenyi Drumm, 2003

( Fig. 3 A–B)

Examined material. TA: 1033 individuals. CNCR 34805 . Tr-Loc: M41- Celestun, Yucatan , Mexico 20°51’43.56’’N 90°24’4.179’’W, seven ♀, 13 ♂, two juv, seven man., 7 May 2005, 26 November 2005, 11 March 2006, coll. AV, SP ; Tr-Loc: M42-Celestun, Yucatan, Mexico 20°59’9.059’’N 90°21’7.516’’W, 170♀, 35 ♀ o, four ♀ m, 189 ♂, 40 juv, 165 man., 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, 19 ♀, one ♀ o, 19 ♂, four juv, eleven man., 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, five ♀, six ♂, 27 man., 7 May 2005, 26 November 2005, 11 March 2006, coll. AV, SP ; Tr-Loc: M45-Sisal, Yucatan, Mexico 21°9’50.04’’N 90°3’2.656’’W, two ♀, one ♂, two man., 7 May 2005, 26 November 2005, 11 March 2006, coll. AV, SP ; Tr-Loc: M46-Chuburna, Yucatan, Mexico 21°15’21.6’’N 89°50’20.288’’W, two ♀, two ♂, one juv, 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, two ♂, one man., 8 May 2005, 27 November 2005, 12 March 2006, coll. AV, SP ; Tr-Loc: M48- Chicxulub, Yucatan, Mexico 21°19’21.179’’N 89°27’25.156’’W, 14 ♀, three ♀ o, 19 ♂, three juv, 16 man., 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, 32 ♀, one ♀ o, two ♀ m, 24 ♂, five juv, 62 man., 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, nine ♀, one ♀ m, nine ♂, seven juv, 13 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, nine ♀, ten ♂, three man., 15 May 2005, 13 November 2005, 13 March 2006, coll. AV, SP ; Tr-Loc: M53-Dzilam, Yucatan, Mexico 21°30’24.619’’N 88°38’1.679’’W, six ♀, two ♂, two 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, five ♀, eight ♂, 19 man., 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, one ♀, one man., 16 May 2005, 12 November 2005, 18 March 2006, coll. AV, SP ; Tr-Loc: M59-Las Coloradas, Yucatan, Mexico 21°33’16.059’’N 87°49’1.059’’W, two ♀, one ♂, 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, one ♀, three ♂, three man., 16 May 2005, 12 November 2005, 18 March 2006, coll. AV, SP ; collected at depths of 0.6–4.6 m, in coarse sand, medium sand, fine sand, and very fine sand, with Caulerpa J.V. Lamouroux , Syringodium Kützing , and Thalassia testudinum K.D. Koenig

.

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

Geographical distribution. Atlantic Ocean: South Carolina, Dania Beach, Key Biscayne, Soldier Key, Florida; GoM: Tampa Bay, Florida, Alabama and Mississippi.

Recognition characters. Rounded rostrum; without eyes; mandibular palp, maxilliped and chela with carpus and propodus with a row of long plumose setae on inner margin; mandibular palp lacking simple terminal setae; chela with fixed finger two-thirds length of dactylus. Male cheliped much more robust than in female.

Remarks. This species has its geographical range extended to the southeastern portion of the GoM ( Mexico). It inhabits the first 100 m perpendicular to the shoreline, in mangrove streams, on sandy bottoms composed of calcium carbonate or silica, coarse sand, medium sand, fine sand, very fine sand and fine silt, nearby coral reefs, at depths 0.5 to 82 m. It is a filter-feeder species, on fine particles of detritus and diatoms.

References. Drumm (2003); Heard et al. (2004); Drumm (2005a, 2005b); Guţu (2006); Heard & Anderson (2009); Drumm & Heard (2010); Drumm & Heard (2011).

Figures

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

FIGURE 3. Tanaidaceans species of the sublittoral zone of the northern Yucatan Peninsula, suborder Apseudomorpha. (A) Mesokalliapseudes macsweenyi ♂; (B) M. macsweenyi ♀; (C) Psammokalliapseudes granulosus ♂; (D) P. granulosus ♀; (E) Calozodion wadei ♂; (F) C. wadei ♀; (G) Pagurotanais largoensis ♂; (H) Shells that P. largoensis inhabits: upper left, Eulithidium affine; upper right, Zebina browniana; lower left, Cerithium eburneum; lower right, Stellatoma stellata.