579 



Cryj)toconc1ius ( Acxinthochites) mordicidaris, Quoy et 

 ■Gaim. Type from New Zealand (Voy. de I'Astrol., p. 106, 

 t. 73, f. 30-35, 1834). This is undoubtedly conspecific with 

 'Crijptoconchus 2Jorosus, Burrow (Elem. Conch., p. 189, t. 28, 

 f. 1, 1815). 



Cryptoconchus ste war firm us, Rochebrune. Type (Bull. 

 Soc. Philom., Paris, p. 194, 1881-82). Type is in spirit and 

 is evidently conspecific with preceding species. 



Acanthochiton zeland'icuSy Quoy et Gaimard. Type, in 

 spirit (Zool. Voy. de I'Astrol., iii., p. 400, t. 73, f. 5-8, 1834), 

 marked on label ''M. Quoy et Gaimard, 1833." The shell is 

 "decorated with flat, rounded pustules. The dorsal area is 

 partly smooth, but the rest of the area shows longitudinal 

 striae. They are similar to shells in my own collection from 

 Auckland Harbour. 



Acanthochiton (Lohcplax) .stewartiana^ Thiele. Type is 

 in spirit and marked "Collected by Filhol, lie Stewart.'' The 

 following are my notes : — Anterior valve decorated with five 

 ^well-raised rays formed of largish, elongate, flat pustules. 

 Median valves with a diagonal fold and decorated with rows 

 •of diagonally-placed, raised, oval, flat pustules; much like 

 A. granostriatus, Pilsbry. The posterior valve is very dis- 

 tinct, dorsal area pinnatifid, in the front of mucro pustules 

 are similar in character to those of the median valves. Mucro 

 raised, posterior and distinct. Area behind mucro flat to 

 •concave. A small specimen in my collection, from Wel- 

 lington, is similar in sculpture but has not the strong rays 

 in the anterior valve. 



Xote. — Several other Acanthochitons in the collection in 

 Paris will be dealt with later. 



Rhf/ssoplax f Chiton) canaliculatus, Quoy et Gaimard. 

 Type (Voy. de rAstrol. Zool., iii., p. 394*^: Atlas, t. 75, 

 f. 37-42, 1834), marked ''Voy. Astrol., 1829, New Zealand." 

 Tliere are no scales left on girdle of type. The sculpture is 

 -similar to specimens so named in imj collection. 



Sypharo chiton (Chiton) peUis-serpentis, Quoy et Gaimard. 

 "Type, in spirit (Voy. de I'Astrol. Zool. iii., Moll., p. 381, 

 •t. 741, f. 17-22, 1834); label in handwriting of de Blainville 

 reads, '"'Oscabricon a Serpent, pi. 741, fig. 17-22, New Zealand, 

 Astrol obe." Tliere are three specimens of this well-known 

 shell. In all there is very little sculpture in the median areas, 

 but the lateral areas are quite normal. One of the three is 

 •quite as carinated as S. sinclairi, Gray. 



Liolophura fChiton) hirtosus, (Peron MS.) Blainville. 

 Type (Diet. Sci. Nat., xxxvi., p. 546, 1826), Dr. J. Tliiele 

 (Fauna S.W. Austr., p. 399, 1911), Dupuis (Ex. Bull. Mus. 



