Munidopsis erinacea (A. Milne-Edwards, 1880)

Vazquez-Bader, Ana Rosa & Gracia, Adolfo, 2016, Diversity and distribution of Chirostyloidea and Galatheoidea (Decapoda, Anomura) in the Southern Gulf of Mexico, ZooKeys 612, pp. 1-30 : 15

Taxon classification Animalia Decapoda Munidopsidae

Munidopsis erinacea (A. Milne-Edwards, 1880)

Material examined.

BATO stn. 42, 1 male. BIOREPES stn. 47, 11 males, 3 females, 7 ovigerous females 7, stn. 55, 1 ovigerous female. BIOREPES 2 stn. 4, 1 male 1, stn. 11, 2 males, stn. 24, 1 female, stn. 32, 1 male. BIOREPES 3 stn. B6, 2 males. COBERPES stn. A11, 1 female, stn. Ω 7, 1 female, stn. A12b, 1 male, 1 ovigerous female, stn B2, 1 ovigerous female, stn. B12, 1 male, stn Ω 7, 1 female, stn. Ω 14, 1 female. COBERPES 2011 stn. B2, 1 ovigerous female, stn. B4, 2 males, 1 female, 1 ovigerous female, stn. C2, 4 males, 4 ovigerous females, stn. C3, 2 males, 1 ovigerous female, stn. C4, 1 male, 1 female, stn. D1b, 1 female, stn. D6, 1 female, 1 ovigerous female, stn. D9, 11 males. COBERPES 3 stn. α 10, 1 male, stn. α 11, 1 ovigerous female, stn. B17, 1 male.

Remarks.

It was collected off Soto la Marina River, Tamaulipas; San Pedro and San Pablo Rivers, Tupilco Lagoon, Tabasco; Términos Lagoon, Campeche; N Alacranes, Yucatán; (ESE, SSE, SSW, WSW); 406.0-820 m. Munidopsis erinacea was the sixth species in terms of abundance (n = 72). The highest abundance was observed in the sector ESE during the spring season in a depth range of 700-799 m. The ANOVA analysis was made only for males (n = 37), but did not show significant differences by depth [F (3;32) = 1.1295; p = 0.3518] or season [F (2;33) = 3.0006; p = 0.0635]. The mean size of males was x = 14.0 ± 3.954 (6.0-21.4) at 406-780 m depth range. The mean size of females was x = 10.4 ± 3.346 (6.4-18.0) at 530-820 m depth. The mean size of ovigerous females was x = 12.7 ± 2.431 (8.3-17.1) at 530-820 m depth.

The ovigerous females were observed in all seasons; however, they were more numerous during spring in the ESE sector. Sex ratio was similar in all seasons (1 M: 1 F). Two individuals were infested by rhizocephalans (CL male = 15.9 mm, female = 17.0), and one female (CL = 13.1 mm) was infested by bopyrid.