AND OTHER FAMILIES. 51 



Helix muscahum. Plate XIX. fia;. 59. 



a* 



Testa globosd, crassd,poUld, longitudinaliter nitide striatd, subfuscd ; maculis 

 niimerosis iri'Cgnlaribus minulis, ct fasciis cilbis subnigris et fuscls indutd ; an- 

 fractibiis terms; spiru rotundatd ; apice alba; apcrturd subrotiindd ; labro 

 acitfo, intus crassescenii ; labia subritfo ; columelld Ixvi albuqiie. 



Shell globose, thick, polishetl, longitudinally and finely striated, light brown, fur- 

 nished with numerous irregular minute spots, and blackish brown and white bands; 

 whorls three ; spire rounded ; a]icx wliite ; aperture nearly round ; right lip siiarp, 

 growing thicker within ; left lip light red ; columella smooth and white. 



Hab. Society Islands, Pacific Ocean. Lieutenant Dornin. 



My Cabinet. 

 Diam. -S, Length •? of an inch. 



Remarlis. — This curiously and elegantly painted shell I owe to Lieu- 

 tenant Dornin, who, when on board the sloop of war Vincennes on 

 her voyage round the world, very kindly collected for me many rare 

 and fine specimens. It is eminently distinguished by its compound 

 blind, its globosity, and its innumerable minute spots. The columella 

 is somewhat thickened by a dark pink deposit. 



Helix purpuragula. Plate XIX. fig. GO. 



Testd obtiiso-conicd, crassd, inferne planiilald, politd, longilitdlnaliler minute 

 striata, superne luted ct fusco-virgald, inferne luted, in medium unfractum ob- 

 sciiro-fasciatd, subs^ituram maculatd, imperforatd ; anfractibus quinis ; spird 

 obtitso-conicd ; aperturd ovatd, intus purpured ; labro rejlcxo, prope basim ma- 

 jori ; coluinclld Iwvi, ad basim subconcavd. 



Shell obtusely conical, thick, flattened below, polished, minulel}' and longitudinally 

 striate, above yellow and striped with brown, below yellow, obscurely banded on tlie 

 middle of the whorl, irregularly spotted on the inferior part of the suture, imperforate; 

 whorls five ; spire obtusely conical ; aperture oval, purple inside ; outer lip sub- 

 reflected, enlarged towards the base ; columella smooth and impressed at base. 



