78 IOWA STUDIES IN NATURAL HISTORY 



Bathsheba, Barbados ; 1 5 . 

 Needham Point, Barbados ; 1 9 . 

 Barbados; 1 9 ovig. 



EucHiROGRAPSUS AMERICANUS A. Milne Edwards 



Rathbun, Bull. U. S. Nat. Mus., No. XCVII, 1918, p. 282, pi. 

 LXXIV, text-fig. 144. 



W. of Telegraph Station, Barbados, 1 mile; 86 fathoms; bot- 

 tom rocky ; May 30 ; sta. 59 ; 1 6 . 



Cable station, Barbados, bears E. by S., Lazaretto E. S. E. 

 1/^ S. ; 35-60 fathoms; bottom mostly rocky, working on steep 

 slope; tangles; June 3; sta. 75; 1 9 1 juv. 



The type-locality is off Barbados, 69 fathoms, ''Blake." 



Aratus pisonii (Milne Edwards) 



Rathbun, Bull. U. S. Nat. Mus., No. XCVII, 1918, p. 323, 

 pi. XCVI. 



English Harbour, Antigua ; 1 9 . 



Pillars of Hercules, Antigua; 2 9 (1 ovig.). 



Plagusia depressa (Fabrieius) 



Rathbun, Bull. U. S. Nat. Mus., No. XCVII, 1918, p. 332, pi. 

 CI, text-fig. 154. 



Barbados; 1 old male. 



Bathsheba, Barbados ; 1 small but mature 9 . 



Percnon gibbesi (Milne Edwards) 



Rathbun, Bull. U. S. Nat. Mus., No. XCVII, 1918, p. 337, 

 pi. CV. 



Pillars of Hercules, Antigua ; 2 5 3 9 (1 juv.). 

 English Harbour, Antigua ; 2 5 juv. 

 Okra Reef, Barbados ; May 13 ; 1 5 juv. 



Family Gecarcinidae 



Cardisoma guanhumi Latreille 



Rathbun, Bull. U. S. Nat. Mus., No. XCVII, 1918, p. 341, pis. 

 CVI and CVII, text-fig. 155. 



Bridgetown, Barbados ; 1 large, well-developed 6 , 1 adult 9 . 

 Mangrove swamp, north of Bridgetown ; 1 young 9 . 



