HALIOTIS CARINATA. 
(Lot 542.) 
H, (div. 2.) testa rufo alboque varid, costd centrali, transversd, intis 
concavd, insign; spird ampld; foraminibus lineam contvexam 
perforantibus. 
Shell marbled with rufous and white, with a transverse, central 
rib, which, on the inner surface, is concave; spire ample, ele- 
vated; perforations placed on an elevated line. 
Martina, vol. 1. tab. 14. fig. 140. 
Tus, and the shell, improperly placed under a distinct 
genus, by the name of Padollus scalaris, are the two species 
confounded under the Linnean synonym of Haliotis parva. 
I am not certain as to its precise locality. The interior sur- 
face is faintly marked with fine lines, parallel with the trans- 
verse rib; and the whole shell is generally thin. 
HALIOTIS RUFESCENS. 
(Lot 781.) 
H, (div. 1.) testd ponderosa, levitér striatd, aliquandd nodis sparsis 
deformr, rufescente; spird brevi; labw exterioris extremtate 
anticd gibbé; labio interiore angusto; foraminibus levatts, 
remotis, (3 aut 4 apertis.) 
Shell ponderous, obsoletely striated, sometimes deformed by scat- 
tered nodules, reddish; spire small; outer lip at the top 
gibbous; inner lip narrow; perforations elevated, remote, 
with only 3 or 4 open. 
In proportion as the back of this species is worn down, the | 
colour becomes of a brighter red; it attains to a very large 
size, and, when in perfection, is a beautiful species. Inhabits 
the coasts of the Gallipagos and California. 
