58 
A COENISH FATTNA. 
Gbntts AcHiETTS. — LeacJi. 
“ Snout not mucli lengthened, and on each side leaving un- 
covered the insertion of the stalk of the external antenna). The 
terminal joint of the two xJOsterior imirs of legs is large, com- 
pressed and falciform.” 
Achasus Oeanchii. — Leach. — OrancKs Spider Oral. — Not common. 
Deep water among weed, and from its small size probably 
frequently overlooked.” 
Genus Inachus. — Fair. 
“ Differing from the two former genera in having retractile 
eyes capable of extensive motion, second pairs of legs thrice as 
long as the first-frontal portion of the carapace ; terminal portions 
of the four hinder pairs similar and slender.” 
Inachus Doesetensis. — Leach. 
,, ScoEPio — Couch's Cornish Fauna — “Scorpion Spider 
Oral. — Commonly taken in crab pots within a few miles of 
the shore at all depths,” 
“ Inachus Doehtnchus — Leach — Feelle Lnachus. — Common, not 
unfrequently found on board crab boats.” 
“Excej)t in the rostrum it has much of the aspect of Stenor- 
hynchus longirotris, but is less common.” 
Inachus Lepxochieus. — Leach. 
,, Leptoehinchus — erroniously given by Edwards and 
Couch — Stnall Snouted Lnachus. — Taken off the coast of 
Cornwall by Cranch. 
MAIADJJj. (Maians.) 
Genus Pisa. — Leach. 
“ Eostrum much developed, stout, formed of two lengthened 
horns, somewhat conical ; stalk of the external antennse nearly 
on the level of the rostrum.” 
“Pisa Teteaodon — Milne Edwa/rds, Crust., Vol. 1, p. 30.5* — Four- 
horned Spider Oral. — Much larger than the other spider 
crabs and far more formidable in ajipearance. Not common. 
Pisa Gibbsi. — Leach. — GUIs' Spider Oral. Not uncommon 
in from about twenty fathoms of depth, and taken in crab' 
pots.” 
