1865.] DR. P. P. CARPENTER ON CHITONID2. 511 
of these animals, Elephas falconeri. The two latter species were 
distinguished by very well-marked dental and other characters. 
This paper will be published in full in the Society’s ‘ Trans- 
actions.” 
A paper was read by Professor Owen containing descriptions of 
new species of Indian Cetaceans, which had been observed and col- 
lected on the eastern coast of the Indian peninsula by Walter Elliot, 
Esq., F.Z.S. Of the seven species described as new, six belonged 
to the family Delphinide ; the seventh was referred to the Sperm- 
Whales (Physeteride), and proposed to be called Physeter (Eu- 
physetes) simus. 
This paper will likewise be published in full in the Society’s 
‘ Transactions.’ 
The following papers were read :— 
1. Description oF Two Species oF CHITONID#, FROM THE 
CoxLLecTion or W. Harper Pease, Esa. By Purp P. 
Carpenter, B.A., Pu.D. 
Cuiron (Loruyrus) PeRviRIpDIS, Cpr. 
C. ¢. parva, angustiore, elevata, jugo acuto ; colore intense prasi- 
nato ; tota superficie sub lente minutissime squamuloso ; areis 
diag. et valv. externis radiatim liratis, liris obtusis, parum con- 
spicuis, lateraliter iv.-v., antice et postice xx.—xxv.; areis 
centr. sulcis distantibus, jugo parallelis, circ. xii., parum im- 
pressis ; mucrone antice subcentrali, satis conspicuo: intus 
laminis insertionis valv, term. viii.—xi.-, centr. unifissatis ; den- 
tibus acutioribus, alte pectinatis, subgrundis curtis; sinu latiore, 
planato, ad jugum dentato: pallio squamis magnis, solidis, im- 
bricatis sed striatis instructo. 
Long. *45, lat. 25, alt. -12 poll. 
Hab. Central Pacific (Pease) (no. 299). 
A solitary specimen of this interesting species is very like C. vi- 
rescens, Rve.*, in general appearance ; but the mantle of that species 
is nearly smooth, and the valves scarcely sculptured. This shell is 
of a uniform bright green. It has the aspect of Lepidopleurus ; but 
the insertion-plates, though sharp, are deeply pectinated.- It differs 
from most other Chitons in having the scales distinctly striated, as 
in C. striatosquamosus, Maz. Cat. no. 250. 
ACANTHOPLEURA NIGROPUNCTATA, D. S. 
A. t. parva, satis elongata, olivaceo et fusco eleganter nebulosa ; 
satis fornicata, jugo obtuso ; areis later. satis definitis, rugis 
radiantibus et longitudinalibus irregulariter decussantibus or- 
natis, inter quas punctula nigra subradiatim sparguntur ; ar. 
centr. rugis subparallelis, subdecussatis, via regularibus, ad 
* Four out of the five specimens in Mus. Cuming. have a brown-marbled ante- 
rior valve, with brown dots along the sutures. 
