CHITON. 179 



This species has been reported from New Zealand, but probably 

 incorrectly. 



C. PULVINATUS Carpenter, n. sp. 



Shell small, oval, subelevated, with acute jugum ; mucro median ; 

 apices of the valves prominent; olivaceous and brown variously 

 clouded and irregularly painted. Entire surface minutely punct- 

 ulated ; central areas having about .16 deep sulci on each side; lateral 

 areas well defined, nearly smooth, as are the end valves also. 



Interior: anterior valve having 10, central valves 1, posterior 

 valve 9 slits ; teeth acute, deeply serrated ; sinus moderate, dentic- 

 ulate. 



Girdle covered with large smooth scales. 



Length 9, width 4 mill.; divergence 110. (Q?r.) 



New Ireland (Mus. Cuming, no. 78.) 



Distinguished from luzonicus by the smooth scales and side-areas, 

 which display a velvety appearance under the microscope. 



C. CEREUS Reeve. PI. 36, figs. 96, 97. 



Shell oblong-ovate, angularly raised in the middle ; valves rudely 

 impressly striated throughout, umbonal eminence smooth. Dull 

 green ; ligament granosely coriaceous. 



The color is a uniform dull green except along the rubbed 

 umbonal summit, where it has a copperas hue. (Eve.} 



New Zealand (Earl.) 



Chiton cereus REEVE, Conch. Icon., t. 7, f. 36 (1847). Chiton 

 (Leptochitor,) cereus SMITH, Zool. Voy. ' Erebus ' and ' Terror' Moll, 

 p. 4, t. 1, f. 9. Ch. siculoides CPU., MS. 



This species has been referred by Smith to C. sieulus Gray. The 

 locality requires confirmation, as it rests solely upon Cumingian 

 specimens. Hutton (Man. N. Z. Moll.) reprints Reeve's diagnosis 

 without comment. 



Carpenter's notes on Reeve's type are as follows : Central areas 

 having about 20 furrows on each side, not deep, continuing until 

 they are rubbed off in the middle ; lateral areas having 4-8 divari- 

 cating riblets, much worn, broken up by the concentric rugse of 

 growth ; crenate at the sutures ; end valves with about 30 riblets. 

 Mucro in front of the middle, posterior slope concave. Interior 



