THE NAUTILUS. 119 
NOTICES OF NEW CHITONS, II. 
BY H. A. PILSBRY. 
Chiton Cozi, n. sp. 
Shell oblong, much elevated, carinated ; delicate bluish mottled 
or blotched with olive-brown, yellow and white; girdle delicate 
blue-green, with narrow white bars. Sculpture as in Ch. jugosus 
Gld., but grooves of the pleura shorter, straighter, narrower, and 
more spaced. Girdle-scales convex, shining, microscopically and 
superficially striated, each measuring about .30 mm. wide. Length 
13, breadth 7 mm.; divergence, 90 to 110°. 
Port Jackson (Dr. J. C. Cox!) 
This is probably the Lophyrus jugosus of Angas’ Port Jackson 
Catalogue, P. Z.S. 1867. It differs from Goulds’ species in the 
totally diverse color-pattern, etc. 
Acanthochites granostriatus n. sp. 
Elongated, the tegmentum occupying about one third the total 
width in dry specimens. Valves obtusely keeled, the dorsal ridge 
indisticntly clouded with whitish, orange and biackish; side mot- 
tled in varied patterns with olive and white. Girdle olive, the 18 
tufts silvery stained with blue or dirty olive. 
Valves distinctly imbricating ; the dorsal areas rather wide, con- 
vex, distinct but not raised at the edges, having numerous rather 
weak longitudinal striz. Side areas having elevated pustules 
arranged radially and connected by opaque lines giving the aspect 
of radial striez. Tegmentum of post. v. subcircular, the mucro 
rather acute and elevated, at the posterior third. Length 9, breadth 
34mm. Port Jackson and Port Hacking, N.S. Wales (Dr. J.C. 
Cox !) 
Acanthochites Cowi, n. sp. 
Valves grayish, somewhat mottled with olive and fleshy, the dor- 
sal areas dark red or marked with olivaceous. Girdle olivaceous. 
Valves nearly disconnected by spiculose bridges of girdle tissue at 
the sutures. Dorsal areas longitudinally striate; sides sculptured 
with convex pustules elongated radially. Tegmentum of posterior 
valve subcircular, slightly wider than long, the rather elevated, 
acute mucro slightly bebind the middle. Interior rose colored. 
