Rhyscotus texensis 249 



Ligia Fabricius, 1798 

 Ligia baudiniana H. Milne Edwards, 1840 

 Figure 106B,C 



DIAGNOSIS 6 and 9 up to 22 mm. Antennal flagellum elongate, multiar- 

 ticulate. Apex of 6 pleopod 2 bifid, with lateral lobe longer and more slender 

 than mesial lobe. Uropods inserted terminally on pleotelson; sympods 

 elongate-cylindrical; rami slender, elongate, subequal. 



RECORDS Bermuda; Bahamas; U.S. Virgin Islands; Antigua; Carrie Bow 

 Cay, Belize; Bonaire; Aruba; Trinidad; Tobago; Gulf of Mexico. 



REMARKS As is typical in the genus Ligia, this species may be seen on rocks 

 and sea walls, as well as piles of drift debris at low tide. When disturbed, they 

 run rapidly, to shelter in damp crevices and hollows. 



Ligia exotica Roux, 1828 

 Figure 106D,E 



DIAGNOSIS S 28.5 mm, ovigerous 9 32.0 mm. Propodus of 6 pereopod 1 

 with rounded lobe on inner distal surface. Apex of 6 pleopod 2 club shaped, 

 convoluted. 



RECORDS New Jersey to Uruguay; Indo-Pacific. 



Ligia olfersii Brandt, 1833 

 Figure 106F 



DIAGNOSIS 6 20.0 mm, ovigerous 9 24.0 mm. Apex of 6 pleopod 2 simple, 

 club shaped. 



RECORDS South Florida to Rio de Janeiro, Brazil; Texas, Gulf of Mexico. 



Rhyscotus Budde-Lund, 1885 

 Rhyscotus texensis (Richardson, 1905) 

 Figure 106G 



DIAGNOSIS S and 9 6.0 mm. Antennal flagellum of two unequal articles. 

 Uropodal endopod at least twice length of exopod, inserted distally on base, 

 exopod inserted distally on base. Pleotelson broadly triangular. 



RECORDS Carrie Bow Cay, Belize; Texas, Gulf of Mexico. 



