18 
HISTORY OE 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 Spider 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. 
