IS HISTORY OF BRITISH CRUSTACEA. 



The species of this genus are of small size, the body co- 

 vered with down and hairs, among which Sponges and Zoo- 

 phytes often grow. 



Inachus Dorsetensis, Penn. sp. Scorpion Spicier Crab. 

 — Beak very short, wide, and deeply notched down the mid- 

 dle, the stomachal region of carapace furnished with five 

 spines or tubercles, the middle and posterior are very large 

 and strong, and four small spines are placed before them in 

 transverse line. 



First found at Weymouth, and subsequently over the 

 south coast. Mr. Barlee dredged it in Shetland, and Dr. 

 James Howden in the Firth of Forth. The Rev. George 

 Gordon remarks that it is " the most abundant of the slen- 

 der-legged Crabs in the Moray Firth. On one occasion 

 twelve full-grown specimens were taken from the stomach 

 of an ordinary-sized cod, of which fish in this locality it 

 seems to be a favourite morsel."* The Rev. Alfred Nor- 

 man remarks, that it is abundant in the Clyde, and is very 

 frequently entirely invested with a sponge. 



Inachus dorhynchus, Leach. Leach's Spider-Crab. — 

 Stomachal region with three points arranged in a triangle. 

 Beak longer than in the last, divided by a fissure. Fore 

 * Zoologist, 3681. 



