TRITONIDA. 123 
protect the lip during a season of rest,and it would be extremely 
interesting if it could be discovered what length of time ordi- 
narily elapses between the formation or deposit of the varix and 
the renewal of the operation of growth.’— Conch. Icon., vol. ii, 
Triton, 1844. 
Mr. Arthur Adams mentions the adaptation of the Trumpet- 
shell ( 7. tritonis) to the purposes of a tea-kettle by the inhabitants 
of the Typinsan archipelago, near the Loo-Choo Islands; the 
operculum forming the lid, the canal answering the purpose of a 
spout, and the shell suspended by a wooden hook over the fire. 
Mr. Adams says that this rude vessel was adopted several times 
for the convenience of his party, and answered its purpose 
admirably.— Narrative Voy. Samarang, i, 89. 
Madame Power found J. nodiferus capable of reproducing 
amputated tentacles, etc. The Silicians and Algerians eat this 
mollusk and esteem it a delicacy. At Nice, the fishermen and 
country people make a hole in the apex of the spire and use the 
shell as a trumpet which, Vérany remarks, produces a braying 
sound. It is an indispensable instrument in the old-fashioned 
charivari, which he describes as a deafening serenade to signalize 
the marriages of ill-assorted or unpopular couples. 
The species of Triton being numerous, several attempts have 
been made to separate them into generic or subgeneric groups; 
the most successful being the arrangement of Messrs. H.and A. 
Adams. Two of these groups, however, Simpulum and Cabestana, 
are so closely related that I think Kobelt has very judiciously 
united them. Priene is the connecting form approximating 
Triton and Ranella; whilst in the latter genus species of the 
group Lampas recall Triton. 
SIMPULUM, Klein. Shell fusiform, whorls nodosely ribbed ; 
outer lip thick, plicate-dentate internally. Operculum with apical 
nucleus. TZ. chlorostomus, Lam. (xlvi, 55). 
CYMATIUM, Bolten. Whorls triangular; aperture longer than 
the spire ; outer lip dentated internally. Operculum with apical 
nucleus. 7. tigrinus, Brod. (xlvi, 56). 
GUTTURNIUM, Klein. Shell pyriform, subturreted, canal long, 
narrow. Operculum with submarginal initial point, near the 
middle of the inner margin. 7. cynocephalus, Lam. (xlvi, 57). 
The shells of this group possess a peculiar polished, porcel- 
lanous outer and inner lip, the latter reflected over the columella, 
together with a short, rounded pyriform body and lengthened, 
narrow, more or less twisted canal. 
EPIDROMUs, Klein. Shell with long, generally curved spire ; 
aperture small and canal very short. Operculum triangular, with 
submarginal nucleus. 7’. distortus, Schub. Wagn. (xlvi, 58). 
PRIENE, H. and A. Ad. Shell ventricose, thin, cancellated or 
plicated; canal short. Operculum with apical initial point. 
