Mollusca of Dominica. 431 
the convexity of the spire, and in that particular our shell is 
nearer to H. Baudoni; and the balance of characters is in 
favour of the latter name. The animal is viviparous, often 
containing twenty young of different sizes. ‘he smallest 
shells resemble a Bulla in shape. ‘The lingual teeth are like 
those of H. cellaria, and the animal is not furnished with any 
caudal appendage. 
4, Helix Josephine, Fér. 
5. Helix dentiens, Fér. 
6. Helix badia, Fér. 
7. Helix nigrescens, Wood. 
These four Helices are common throughout the island, 
Their mandibles and lingual dentition are similar. 
8. Bulimulus laticinetus, n. sp. 
Testa perforata, conico-elongata, tenuis, fusca vel flava, nitida, de- 
cussata, castaneo 4-fasciata (in forma 8 unicolor), fascia media 
latior ; anfr. 6, convexiusculi, regulariter accrescentes, ultimus 2 
longitudinis teste circiter equans; spira elongata; apex acumi- 
natus ; apertura semiovalis; peristoma simplex, acutum, vix ex- 
pansum ; columella torta, dilatata, reflexa. 
Alt. 24 millim., lat. 10; aperture alt. 10, lat. 5; anfr. ult. alt. 15. 
a. Shell perforate, conic-elongate, fuscous or yellow, thin, 
shining, decussate, zoned by four dark chestnut bands, of 
which two are visible on the upper whorls, the second (reckon- 
ing from the suture) being the widest; whorls 6, a little con- 
vex; peristome thin, columellar margin reflected over the 
narrow perforation ; columella slightly twisted. 
B. Titke a, but yellowish or greenish, devoid of colour- 
bands, and somewhat broader. 
A species allied to B. multifasciatus, but narrow and rela- 
_ tively more elongate, and with only four wide colour-bands. 
9. Bulimulus exilis, Gmelin. 
10. Bulimulus stenogyroides, n. sp. 
Testa rimata, turrita, elongata, cylindrica, parum nitens, albido- 
cornea sub epidermide brunnea, sinuato-striata ; anfr. (? circa 5-6) 
convexiusculi, ultimus spire longitudinem superans; apertura 
elongato-ovalis, angusta, producta; peristoma simplex, acutum, 
marginibus callo tenui junctis ; columella refiexa. 
Long. —?, lat. 53 millim.; apert. alt. 6, lat. 24; anfr. ult. alt. 10. 
A rimate, turrite, elongate cylindric, scarcely shining shell, 
whitish horn-coloured under a brown epidermis, the strie of 
