Creaseria morleyi (Creaser, 1936)

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

Creaseria morleyi (Creaser, 1936) Figure 3G

Material examined.

2 individuals; Cenote Tza Itza, depth 15.4 m, cavern, freshwater, 27 °C, Tecoh, Yucatan, Mexico; 10 May 2016; colls. D. Angyal & E. Chávez Solís. 2 individuals; Cenote Kampepen, depth 6-9.5 m, cavern, freshwater, 27 °C, Chinquila, Yucatan, Mexico; 17 May 2016; colls. D. Angyal & B. Magaña. 2 individuals; Cenote Kakuel, depth 3 and 13.9 m, cavern, freshwater, 27 °C, Mucuyche, Yucatan, Mexico; 10 June 2016; colls. D. Angyal & E. Chávez Solís. 1 individual; Cenote Kankirixche, depth 3.6 m, cavern, freshwater, 27 °C, Mucuyche, Yucatan, Mexico; 11 June 2016; colls. D. Angyal & E. Chávez Solís. 1 individual; Cenote Santito, depth 4.0 m, cavern, freshwater, 27 °C, Kopoma, Yucatan, Mexico; 10 November 2017; colls. D. Angyal, S. Drs & L. Liévano. 1 individual; Cenote Kankal, depth 0.3 m, cavern, freshwater, 25 °C, Homun, Yucatan, Mexico; 18 November 2017; colls. D. Angyal, S. Drs, E. Chávez Solís & L. Liévano. 1 individual; Cenote Bebelchen, depth 30.0 m, cavern, freshwater, 25 °C, Sanahcat, Yucatan, Mexico; 18 December 2017; colls. D. Angyal, L. Liévano & S. Reyes. 1 individual; Cenote El Virgen, depth 25.0 m, cavern, freshwater, 26 °C, Sotuta, Yucatan, Mexico; 20 December 2017; colls. L. Liévano & N. Simoes. 1 individual; Cenote Dzalbay, depth 4.3 m, cavern, freshwater, 23 °C, Sotuta, Yucatan, Mexico; 20 December 2017; colls. D. Angyal & L. Liévano.

Previous distribution.

Creaser 1938; Hobbs and Hobbs 1976; Holthuis 1977; Hobbs et al. 1977; Reddell 1977, 1981; Hobbs 1979; Pérez-Aranda 1983b; Iliffe 1992; Botello and Álvarez 2006; Botello and Álvarez 2010; Benítez 2014; Álvarez et al. 2015; Chávez Solís 2015; Chávez Solís et al. 2017; Benítez et al. 2019.

Type locality is San Isidro Cave (Yucatan). Widely distributed in cenotes and caves of Yucatan, Campeche, and Quintana Roo.

Remarks.

Reddell (1981) mentions the species as an "ever-present element of fauna of pools and lakes in caves in the Yucatan Peninsula". In addition to the above listed localities, we also observed the species in cenotes Yaal Utsil, Pol Box, San Elias, Dzonotila, Flor de Liz, X’baba, Chihuo Hol, and Yax-Kis. Specimens were recorded in both cave and cavern sections, up to 38 m in depth. Benítez et al. (2019) also found individuals around and below the halocline in cenotes belonging to the Ox Bel Ha system. Creaseria morleyi is listed as “threatened” in the Mexican Red List of Threatened Species (NOM-059- SEMARNAT 2010) and as "least concern" in the IUCN Red List ( De Grave et al. 2013c).

Figures

Figure 3. A Creaseriella anops (Isopoda) B Yucatalana robustispina (Isopoda); C Cirolana yunca (Isopoda) D Typhlatya dzilamensis (Decapoda) E Typhlatya mitchelli (Decapoda) F Typhlatya pearsei (Decapoda) G Creaseria morleyi (Decapoda). Scale bars: 1 mm (B, C, F); 10 mm (A, D, E, G).