SQUILLIDiE. 
153 
Gen. 56. YENILIA, Sjoence Bate . 
Carapace with the lateral angles meeting in front of an- 
tennal segments. Two pairs of well- developed antennae. 
Five hind segments of thorax exposed. Central tail-piece 
rudimentary. 
Yenilia gracilis, Spence Bate. — Carapace long and 
narrow, each of the five front abdominal segments with a 
pair of swimming feet. 
Moray Firth (Rev. G. Gordon) . 
Fam. SQUILLIDjB, M. Edw. 
Body long and generally depressed. First pair of thoracic 
legs very large, and adapted for seizing and securing their 
prey, the last joint folding upon the other and strongly 
armed ; the next three pairs much smaller and generally 
placed on the mouth, appearing to serve for holding their 
food : they terminate in an oval hand, armed with a mov- 
able fang ; the three next pairs slender, cylindrical. Cara- 
pace divided into three lobes; a rostral movable plate and 
well-developed gills. 
