STALK-EYED CRUSTACEA 93 



front to receive the seventh segment of the abdomen ; the 

 sixth abdominal segment is very wide anteriorly. 



The carapace is violet brown ; the legs and the pincers 

 are spotted with light violet. 



Range. — Guadaloupe. 



9. Mithrax (Mithrax) verrucosus. 



MitJirax vcrrucosiis . A. Milne Edwards, Stimpson, 



Desbonne and Schramm. 



The carapace is wide, slightly curved, and covered with 

 very flat and serrated granulations, with some tubercles 

 on the posterior part of the branchial regions. The 

 prjEOcular spine is slightly projecting, and directed a little 

 outwards. The orbital border is cut into four small blunt 

 projections. The lateral borders have five or six spines, 

 of which the two first are double. The rostrum is formed 

 of two short obtuse teeth. The basal joint of external 

 antennae has three tubercular teeth. The fourth joint of 

 the external maxillipedes has its antero - internal angle 

 notched. 



The pincers are smooth. The forearm has on the 

 inside three large tubercles. The arm is spiny. The 

 walking legs are robust ; their fourth and fifth joint have 

 spines. The two last joints have hairs. These crabs are 

 nocturnal. 



Colour, a vinous red. 



Range. — Martinique, Guadaloupe. 



10. Mithrax (Mithrax) leucomelas. 



Mithrax leucojudas . . Desbonne and Schramm, A. 



Milne Edwards. 



Carapace depressed, rough, without spines, slightly 

 longer than wide, subtriangular, antero - lateral edges 



