38 STALK-EYED CRUSTACEA 



postfrontal portion of the carapace, cylindrical ; the legs 

 of the second pair are once and a half as long as the 

 postfrontal portion of the carapace. Rostrum, sides of 

 carapace, and four last pairs of legs have hairs ; colour, 

 yellow-red. 



Range. — Barbados. 



Subfamily III. Acanthonychinae. 



AcantJionycJiina Miers. 



AcantlionycJiidcB Stimpson. 



Maiens pJianerophthalmes (part) . Milne Edwards. 



Carapace usually more or less oblong and flattened, 

 more rarely elongated and subcylindrical or subtriangular. 

 Rostrum simple or bifid. Eyes small, and immobile or 

 partially retractile, and concealed beneath the praeocular 

 spine. Postocular spine small or absent. Basal joint of 

 external antennae usually enlarged at base, and narrowing 

 distally. The fourth joint of the external maxillipedes 

 is truncated at its distal end, and articulated with the 

 next joint at its antero-internal angle. 



The first pair of legs, in the male, usually has the palm 

 compressed. The walkng legs are of moderate length. 

 Abdomen four to seven-jointed. 



Synopsis of the Genera. 



A. Carapace elongated, ovato-cylindrical. 

 Rostrum elongated, emarginate or bifurcated. 

 Praeocular spine minute or wanting. Eyes 

 immobile. Antennae visible from above. Last 

 two pairs of legs very short. — {Anomaht/ii?'.) 



B. Carapace more or less oblong or 

 orbiculate. Rostrum flattened, emarginate or Anomalothii 

 two-spined. Praeocular spine usually well 



