262 STALK-EYED CRUSTACEA 



which is a small tubercular swelling near a short sharp 

 hepatic spine. The first pair of legs smooth, with the 

 hands compressed, the palm being of the same length 

 as the fingers. The forearm is rounded outside, and 

 armed w^ithin with a slightly hooked spine. Another 

 short spine exists towards the posterior border of the arm 

 at the junction of the hand. 

 Range. — St. Vincent. 



2. Frevillea sigsbei. 



Frcvillca sigsbei . A. Milne Edwards. 



The pincers are provided with bunches of hairs ; the 

 front is almost straight ; the antero-lateral borders have 

 two teeth, the first being smallest. The last joint of the 

 legs of the last pair is much enlarged. 



Range. — Grenada. 



3. Frevillea tridentata. 



Frevillea tridentata . A. Milne Edwards. 



There are three antero-lateral teeth ; the pincers have 

 tufts of hairs ; the last joint of the last pair of legs is 

 styliform ; the fourth joint of the first pair of legs has two 

 spines, one inside and one outside. 



Range. — Barbados. 



5. Bathyplax. 



Bathyplax ... A. Milne Edwards. 



The front is ad\-anced. The ocular peduncles are ver}' 

 small, immovable, and deprived of cornea, the animal 

 being in consequence blind. 



Range. — West Indian Sea to Brazil; in deep water. 



