HARDWICKE'S SCIENCE-GOSSIP, 



155 



Carapaces roughly diamond-shaped, small, massive, 

 and of a pinkish-brown tint. Legs round, slender ; 

 first pair broad in iiimijicata and narrow in tnherosa. 

 May be obtained by dredging in deep water, particu- 

 larly on weedy ground. 



Tkia polita. Carapace similar in appearance to 

 a large thumb nail, fringed with hair anteriorly. 

 Legs fold beneath carapace, somewhat slender. This 

 species is local, and burrows in beds of shelly and 

 stony gravel. 



drical. Antennae very long, slightly plumose. First 

 pair of legs very long in male, short in female. Ab- 

 dominal somites nearly similar in both sexes. Inhabits 

 beds of soft sand such as the Bay of St. Aubin. Can 

 be dredged at times, 



Anomoura. 



Dromia vulgaris. Animal nearly as round as a 

 tennis ball, covered with dense hair of a uniform 

 brown giving it the appearance of an Echinoderm. 



Fig. 112. — Polyhius Henslo-joii. 



Atelecyclus scptcmdentatus. Carapace circular and 

 fringed with hair. Antennae plumose. First pair of 

 legs vertically broad. Colour of animal reddish- 

 yellow, sometimes variegated. This species is some- 

 what rare, and has been taken with the dredge in 

 deep water. 



Corystes cassivelaunus. Carapace approaching the 

 MACRURA form, longer than broad, somewhat cylin- 



Fig. 113. — Portunus piiber. 



Tips of forceps pink in colour. This species has 

 been taken in "pots " in rather deep water. 



Porcellana longicornis. Carapace red to brown, 

 small and flat. Legs long in proportion. Antennae 

 very long. This minute crab clings flatly to the 

 under side of rather smooth stones, where it may be 

 found at low tide. 



Porcellajia platycheles. Somewhat larger than the 



