374 STALK-EYED CRUSTACEA 



behind the joint. The antennal acicle is thin, and curved 

 outwards; the flagellum is long, thin, and naked. 



The first pair of legs are very dissimilar. The right 

 is larger. The left is much thinner, the hand forming 

 a long oval ; it and the fifth joint have no spines upon 

 their superior and external face. 



Range. — Barbados ; in deep water. 



8. Catapagurus. 



Catapagiirns . A. Milne Edwards, Smith, Henderson, 



A. Milne Edwards and Bouvier. 

 Hemipagurus. Smith. 



Front with the rostral projection but slightly marked. 

 Eye-stalks short and stout, with a dilated cornea; basal 

 scales well developed, and separated by a wide space. 

 Antennal acicle slender : the flagellum not distinctly 

 ciliated. First pair of legs slender and unequal, the 

 right longer and stouter; fingers moving in a horizontal 

 plane. Walking legs long and slender, the terminal 

 joint ciliated. First joint of the fifth right leg in the 

 male with a membranous protrusion of the vas deferens, 

 which is curved over the right side of the abdomen. 

 Branchial lamina have a bifid extremity. 



They live in a very small shell that contrasts with the 

 exposed legs and carapace. 



Range. — West Indian Sea, Fiji Islands; in not very 

 deep water. 



Synopsis of the Species. 



A. The ophthalmic scales do not reach the middle of 

 the eye-stalk. — {C. sharreri) 



B. The ophthalmic scales exceed the middle of the 

 eye-stalk. — {C. gracilis.) 



