API'KNDIX. XXI 



Qb^. This bears a great general resemblance to 

 Cassis glauca, Lam. and might easily be mistaken for 

 that species : the following are the particular cha- 

 racters by which it may be distinguished : a more 

 elongated general form, its light brown markings 

 upon a lightish ground colour, and its wanting the 

 sharp teeth at the basal margin of the outer lip, as 

 well as a projecting appendage at the corresponding 

 base of the inner lip. 



1824. CASSIS RINGENS, Swainson. 



Obs. This shell cannot properly be arranged with 

 the Cassides: in our opinion it forms a good genus, 

 to which also Doliian Pomum should be referred. In 

 the present Catalogue we have transferred the latter 

 to the genus Cassis, in order that the two S[>ecies 

 might be brought close to each other. In this re- 

 spect we have followed Swainson, notwithstanding 

 our own conviction that they approach nearer in 

 natural afl&nity to Doliura. 



1826. CASSIS COARCTATA. 



C. testS^ cylindraceo-oblonga, laBviuscula, aibida, cas- 

 taneo-variegata et interrupte fasciata, spira brevi, 

 subacuminata; dorso seriebus quatuor tuberculo- 

 rum subobsoletorum ; apertura elongata, superne 

 coarctatd ; labio externo margine acutiusculo, in- 

 tus dentato ; columella plicate 3 long. 2yV l^^t. 1^ 

 unc. 



Obs. Certainly not a common species, though we 



have met with it several times. We believe it to be 



a New Zealand shell. 



1958. BUCCINUM MELANOSTOMA. 



B. testa ovato-oblongii, aurantiaco-ferruginea, trans- 

 verse sulcata et striata, longitadiila^ter undati, 



