BARBADOS-ANTIGUA REPORTS 83 



Barbados ; May 22 ; 1 juv. with carapace less than 6 mm. long. 

 Agrees in the main with M. acuticornis but the carapace is 

 smoother than usual, the tubercles being fewer and lower. 



MiTHRAx PiLOsus Rathbuu 



Bull. U. S. F. C, vol. XX for 1900, part 2, 1901, p. 66. 

 Pillars of Hercules, English Harbour, Antigua ; 1 6 juv. 

 Barbados ; 1 6 . 



Not before noted from Barbados, but occurring at Guadeloupe 

 and Caracas. 



MiTHRAX HEMPHILLI RathbuU 



Bull. U. S. F. C, vol. XX for 1900, part 2, 1901, p. 69. 

 English Harbour, Antigua ; shore ; 1 5 . 



MiTHRAX VERRUCOSUS Milne Edwards 



Mag. Zool., vol. II, 1832, cl. VII, pi. IV and explanation. 



Pillars of Hercules, English Harbour, Antigua ; 1 5 , medium 

 size. 



Fort Barclay, English Harbour ; July 9 ; 1 $ juv. 



English Harbour; shore; 1 9 juv. 



Pelican Island, Barbados; 1 6 juv. 



Not previously recorded from Barbados ; occurs at Guadeloupe, 

 Martinique and on the coast of Brazil. 



MiTHRAx DEPRESsus A. Milne Edwards 



Bull. U. S. F. C, vol. XX for 1900, part 2, 1901, p. 68. 

 English Harbour, Antigua; shore; 1 6 medium, 1 juv. 



MiTHRAX PLEURACANTHUS StimpSOU 



Bull. U. S. F. C, vol. XX for 1900, part 2, 1901, p. 68. 

 Barbados; 1 5 juv. From coral heads; May 27; 2 6 1 9 

 ovig., all small. 



Not recorded previously from Barbados^ or farther south than 

 Martinique. 



MiTHRAX CARiBBAEus Rathbun 

 Plate III 



Proc. Biol. Soc. Washington, vol. XXXIII, 1920, p. 23. 

 Barbados ; 2 ? , one rather large, the other middling small. 



