CATALOGUE^ — SHELLS. 



559 



The denticLiles of the outer lip are ranged in pairs, at regular 

 and somewhat distant intervals. 



60. Triton scaber. 

 T, testd ovato-acutd, cancellatd ; spird elongatd ; epidermide Jiiscd, 

 setosd ; aperturd albd granulosd ; labro interne obtuse denticidato ; 

 long, ; lat. ; poll. 



Habitat ad oras Amerias meridionalis (Valparaiso). Mus. nost. 



The denticules of the inner lip are more elevated than those of 

 the last (T. ranelliformis), and are equidistant. It was fished up 

 with the anchor in Valparaiso Bay. 



61. MONOCEROS FUSOIDES. 



M. testd ventricosd, spird mediocri, anfractibus bicaritiatis ; anfractu 

 basali lineis elevatis admodum distantibus cincto ; aperturd patuld ; 

 dente labiali brevi, lato, obtuso ; canali producto, recto, integro ; 

 operculo cornea ; long. 2j ; lat. 1|- ; poll. 



Habitat ad oras Americce meridionalis (Concepcion). Mus. Brit., 

 nost., Brod. 



Approaching Fusus in its elongated and entire canal, while its 

 exterior lip has the labial tooth which distinguishes Monoceros. 

 The columella is not straight, as in all the other species, but curved, 

 so as to make an angle in some specimens at the commencement 

 of the canal, and in all it becomes very broad at the point where 

 it is opposite to the tooth. The shell is of a reddish colour^ 

 ventricose, and girt with elevated lines, about a quarter of an inch 

 apart. The spire has only two of these lines on each whorl, and 

 has a bicarinated appearance. The aperture is wide, the outer lip 

 sinuous, its tooth short, broad, and obtuse, and the operculum 

 horny. The shell is seldom found in a perfect state, the beak 

 being generally broken off^ and the surface is, in all the specimens 

 that I have seen, covered with a calcareous encrustation, entirely 

 concealing the colours. 



62. BUCCINUM MURICIFORME. 



B. testd ovato-jiisijormi, cinered ; afifractibus tumidis, costellatis, 

 costellis cancellatis ; aperturd castaneo-nigricante ; labri margine 

 crenulato. Muricem mentiens ; long. 1 ; lat. -^^ ; poll. 

 Habitat ad fretum Magellanicum. Mus. Brit., nost., Brod. 

 The eggs of this species were found, and are preserved in spirits. 



