228 ASPIDOBRANCHIA. CHITONID. 
Shell white ; back with minute elevated tubercles ; the lateral 
membrane with rugulose scales. Length two-eighths of an 
inch. 
Inhabits the European seas; is very common: it adheres to 
sea-weeds and shells. 
2. LEPIDOPLEURUS PUNCTULATUS. 
L. testa obtusé carinata, viridescente aut rufescente sordidé 
albido variegata ; membrana laterali squamis imbricatis ex- 
cavato-punctulatis. 
Habitat in mari Danmoniensi Occidentali et Caledonia Australi 
rarius. Mus. nost. in Mus. Brit. Long. 3 une. 
Shell obscurely carinated, greenish or reddish, variegated 
with pale dirty white; the scales of the lateral membrane im- 
bricated, with very small excavated punctures. Length half 
an inch. 
This species is found on the shores of the Plymouth Sound, 
the shores of the Isle of Arran and the Mull of Cantire in Scot- 
land. It was first discovered by my cousin C. Prideaux, Esq. ; 
I afterwards found it occasionally in the above-mentioned loca- 
lities. 
3. LEPIDOPLEURUS CARINATUS. 
L. testa carinata, tuberculis minutissimis sculpta; membrana 
laterali squamis minutissimis glabris. 
Habitat in mari Hiberniensi rarissimé. Mus. nost. in Mus. 
Brit. Long. © unc. 
Shell carinated, sculptured with very minute tubercles ; the 
scales of the lateral membrane very minute and smooth. Length 
six-eighths of an inch. 
This species was first discovered by Miss Hutchings off Ban- 
try in Bantry Bay: she gave me one specimen, and I after- 
wards found a few in Dingle Bay on the southernmost coast of 
Ireland. 
Genus 105. ACANTHOCHATES. 
Testa membrana laterali spinularum fasciculis instructa. 
