Reproductive biology of galatheoid and chirostyloid (Crustacea: Decapoda) squat lobsters from the Gulf of Mexico Author Kilgour, Morgan J. Author Shirley, Thomas C. text Zootaxa 2014 3754 4 381 419 journal article 46649 10.11646/zootaxa.3754.4.3 96aabdb2-1be6-484b-a6aa-34d046a24d01 1175-5326 229435 D6C44F9E-6EF7-411B-8C49-132AA77AB1A5 Galacantha spinosa A. Milne-Edwards, 1880 Galacantha spinosa was previously reported as Munidopsis spinosa (see Baba et al. 2008 ) and has been reported from French Guiana to the Gulf of Mexico , with one report in Borneo, in depths of 609 to 1007 m (Milne- Edwards 1880 ; Chace 1942 ; Takeda 1983 ; Baba 1988). Specimens were collected every month except January from the Caribbean and Gulf of Mexico in depths of 183 to 1071 m . Forty-five males, 20 non-ovigerous females, and 31ovigerous females were measured; male CW ranged from 9.0 to 30.3 mm , female CW ranged from 13.8 to 33.0 mm, and ovigerous female CW ranged from 16.8 to 33.1 mm . Males and females were not significantly different in sizes (t-test, df = 94, t = 1.869, p = 0.065), but ovigerous females were significantly larger than nonovigerous females (t-test, df = 49, t = -5.907, p<0.001). Ovigerous specimens were collected in all months except January, March, September, and November ( Fig. 12 B). Females carried between four and 262 eggs with average egg diameters between 0.92 mm and 2.88 mm . Fecundity was correlated with CW (R2 = 0.624, p <0.001) ( Fig. 10 B), but the average egg size was not correlated with CW (R2 = 0.0392, p = 0.462).