STALK-EYED CRUSTACEA 397 



4. Megalobranchium. 

 McgalobrancJihuii .... Stimpson. 



Carapace subovate ; frontal region depressed, tridentate. 

 First joint of antennal peduncle more or less produced, 

 and joined to the margin of the carapace ; the second 

 joint placed at a distance from the orbit. First pair of 

 legs large ; fifth joint longer than broad, with entire 

 margins ; hand short. Walking legs terminate in joints 

 with single claw. 



Range. — West Indies. 



I. Megalobranchium granuliferum. 



MegalobrancJiiuui granulifenini . . . Stimpson. 



Sides of body densely hairy above and below the 

 bases of the feet. Feet hairy. Colour white, with 

 scarlet patches on the margins of the median region 

 of the carapace, and on the upper sides of the hands. 

 Carapace smooth, but uneven and rugate towards 

 the sides. Teeth of front not very prominent. First 

 pair of legs granulated above, and longitudinally bisul- 

 cated, dividing the surface into three equal obtuse 

 ridges ; fourth joint very large, not dilated at anterior 

 angle. Front margin of fifth joint not dilated, posterior 

 margin arcuated ; hand triangular, much narrowed be- 

 hind, summit at juncture of finger very prominent ; 

 surface of hand more deeply sulcated than the fifth 

 joint ; outer margin hairy ; fingers gaping, hairy above, 

 crossing each other at their tips ; finger longer than 

 the palm. 



Range. — Barbados, St. Thomas. 



