Mayaweckelia troglomorpha Angyal, 2018

Angyal, Dorottya, Chavez-Solis, Efrain M., Lievano-Beltran, Luis A., Magana, Benjamin, Simoes, Nuno & Mascaro, Maite, 2020, New distribution records of subterranean crustaceans from cenotes in Yucatan (Mexico), ZooKeys 911, pp. 21-49 : 21

Mayaweckelia troglomorpha Angyal, 2018 Figure 2E

Material examined.

2 individuals; Dzonbakal, depth 26.3 and 26.5 m, cave, freshwater, 27 °C, San Antonio Mulix, Yucatan, Mexico; 14 May 2016; colls. R. Acosta, D. Angyal, J. Baduy & S. Reyes. 1 individual; Cenote Kanun, depth 24.3 m, cave, freshwater, 26 °C, Homun, Yucatan, Mexico; 4 June 2016; colls. R. Acosta, D. Angyal, J. Baduy, B. Magaña & S. Reyes. 1 individual; Cenote Xaan, depth 25.4 m, cave, freshwater, 27 °C, Homun, Yucatan, Mexico; 9 June 2016; colls. D. Angyal & E. Chávez Solís. 2 individuals; Cenote Kankirixche, depth 20.4 and 33.3 m, cavern and cave, freshwater, 27 °C, Homun, Yucatan, Mexico; 11 June 2016; colls. D. Angyal & E. Chávez Solís. 5 individuals; Dzonotila, depth 11.0-17.7 m, cavern, freshwater, 27 °C, Mucuyche, Yucatan, Mexico; 20 November 2017; colls. D. Angyal, E. Chávez Solís, S. Drs & B. Magaña. 2 individuals; Cenote X’kokob, depth 4.0-10.0 m, cavern, freshwater, 26 °C, Ekmul, Yucatan, Mexico; 17 December 2017; colls. D. Angyal, E. Chávez Solís, S. Drs & B. Magaña. 2 individuals; Cenote Chihuo Hol, depth 8.0-27.2 m, cavern, freshwater, 27 °C, Mucuyche, Yucatan, Mexico; 26 January 2018; colls. D. Angyal, S. Drs, L. Liévano, B. Magaña & N. Simoes. 1 individual; Cenote Yax-Kis, depth 8.0 m, cave, freshwater, 27 °C, Mucuyche, Yucatan, Mexico; 27 January 2018; colls. D. Angyal, S. Drs & L. Liévano.

Previous distribution.

Angyal et al. 2018. Type locality is Dzonbakal (Yucatan. Allotype female is from Cenote Kankirixche, paratypes are from Dzonbakal and cenotes Kanun, Xaan and Kankirixche (all in Yucatan).

Remarks.

At present, collected material is available from eight localities and a small M. troglomorpha population was also observed in Cenote San Elias. All the individuals were found in freshwater habitats, both in cave and cavern sections, where water temperature was between 26 and 27 °C. In cenote Kankirixche, some individuals were observed below 45 meters in depth. As a species recently described by our research group, one of the outcomes of present expeditions. As M. troglomorpha was found in approximately 30% of the visited sites, it does not appear to be a rare freshwater stygobiotic element in the Yucatan cenotes.

Figures

Figure 2. A Tulumella unidens (Thermosbaenacea) B Stygiomysis cokei (Stygiomysida) C Stygiomysis cf. holthuisi (Stygiomysida) D Antromysis cenotensis (Mysida) E Mayaweckelia troglomorpha (Amphipoda) F Mayaweckelia cenoticola (Amphipoda) G Tuluweckelia cernua (Amphipoda). Scale bars: 1 mm (A, C, D, F, G); 10 mm (B, E).