582 ON NEW SPECIES OF LAND-SHELLS. [Nov. 19, 
Note on BULIMUS FULMINANS. 
Specimens of a supposed new species of Bulimus from Mount 
Roraima, Brit. Guiana, having recently been presented by Miss 
Linter to the Natural History Museum, South Kensington, I was 
asked to give my opinion upon it, and to describe it if new. Com- 
paring it with B. fulminans (Nyst), B. blainvilleanus (Pfr.), and 
B. loveni (Pfr.), it seemed pretty evident that if these could be 
properly considered as three species, the Mount Roraima one must 
constitute a fourth. Upon careful comparison, however, of the 
different forms I have come to the conclusion that they are simply 
geographical forms or varieties of one species. Though differing in 
size and form, all agree in the essential characters peculiar to the 
species, namely the close, regular, longitudinal striation of the upper 
whorls, followed upon the body-whorl by a curious rough malleation 
having an oblique tendency opposite to that of the striz. ‘The only 
noticeable variation is in the relative proportions of these characters ; 
the regular striation in some specimens being confined to the upper 
whorls, and in others covering part of the body-whorl. We have 
then :— 
Buximus FULMINANS (Nyst). 
Typical form. Spire conical, rather produced; outer lip con- 
siderably thickened ; longitudinal waved dark brown Jines, rather 
couspicuous upon the lightish brown colour of the shell. The 
Museum specimens are from the Grota de Guacharos, near Caripé, 
Colombia. 
Var. blainvilleana (Bulimus blainvilleanus, Pfr.). Rather larger 
than type, of lighter substance, shorter spire, more inflated body- 
whorl, darker colour with waved or zigzag markings obscure. 
Hab. Taji, Prov. of Merida, Venezuela. 
Var. loveni (Bulimus loveni, Pfr.). Smaller than type, of very 
thin substance, lightish colour, with zigzag markings conspicuous. 
Hab. Venezuela. 
Var. lintere (Sowerby), Plate LVI. fig. 12. Smaller than type, 
about the size of var. Joveni, than which it is more solid, with a 
more produced spire and narrower body-whorl. The zigzag markings 
are only faintly visible in some specimens. 
Hab. Mount Roraima, British Guiana. 
EXPLANATION OF PLATE LVI. 
Fig. 1. Helix (Geotrochus) horderi, p. 577. 
2. Achatina barriana, p. 579. 
é smithi, p. 579. 
3. 
4. Bulimus salteri, p. 578. 
5. (Mesembrinus?) bowkeri, p. 581. 
6. Helix (Corasia) woodfordi, p. 578. 
ia 
8 
9 
. Bulimus (Buliminus ?) hanningtoni, p. 580. 
(-—) gomezi, p. 580. 
: superstriatus, p. 578. 
10. Trochomorpha godeti, p. 578. 
ll. Achatina lintere, p. 580. 
12. Bulimus fulminans, var. lintere, p. 582. 
13. Leptopoma woodfordi, p. 581. 
14. Cyclostoma hanningtoni, p. 581. 
