230 ASPIDOBRANCHIA. CHITONID. , 
Bays, Ireland; the Friths of Forth and Clyde, Scotland; Tenby, 
Swansea and Milford Haven, Wales. 
2. CHITON FLEMINGIUS. 
C. testa carinata rufa, tuberculis minutissimis sculpta. 
Habitat in mari Zetlandico rarissimé. Mus. Dr. Fleming; et 
nost. in Mus. Brit. 
Shell carinated, red, sculptured with very minute tubercles. 
Length three-eighths of an inch. 
Inhabits the Shetland sea; is very rare. 
This highly interesting species was communicated by my 
kind friend the Rey. Dr. J. Fleming, who discovered it in the 
Shetland seas. 
3. CHITON RUBER. 
C. testa rubra, tenuiter costata, lineis tenuissimis elevatis radi- 
antibus sculpta: interstitiis tuberculatis. 
Habitat in mari Scotico rarius. Mus. nost. in Mus. Brit. 
Long. 3 unc. 
Shell red, slightly carinated, sculptured with very narrow 
radiating lines; the interstices tuberculated. Length half an 
inch. 
Inhabits the Scottish seas; is rather rare: I have found it 
near the Bass Rock at the mouth of the Frith of Forth, in the 
Isle of Arran and in the Hebrides. 
4, CHITOoN CRANCHIANUS. 
C. testa leevi, viridescente. 
Habitat in mari Cornubiensi occidentali rarissimé. Mus. nost. 
in Mus. Brit. Long. # unc. 
Shell smooth, greenish. Length three-quarters of an inch. 
Inhabits the sea, Falmouth, Cornwall; is very rare; was 
discovered by Mr. J. Cranch. 
5. CHITON TUBERCULATUS. 
C. testa, tuberculis numerosissimis, minutissimis, in lineis lon- 
gitudinalibus dispositis, sculpta. 
