MELVILL AND STANDEN: SHELLS FROM LIFU. 87 
the umbilical cavities of each of these specimens are 
colonies of a small Cirrhipede, allied to Lefas fascicularis 1. 
N. pompilius Linné.—One adult specimen. 
Crass GASTROPODA. 
ORDER PULMONATA. 
HPAMILY 27S TACELEID A, 
Micromphalia Saisseti Montr.—Several fine specimens. 
Rhytida inzequalis Pfr.—Several. 
Diplomphalus lifuanus Montr.—Plentiful and very fine. 
FAMILY HELICIDA. 
Helix aspersa Miiller.—A large number of this species were 
received, mostly differing but slightly from European ex- 
amples, but several are almost black in colour. Of course 
the species has been introduced, and Mr. E. L. Layard 
gives a graphic description of his first finding it in the 
Island of Lifu in 1879, and subsequent tracing of the 
authors of its introduction, who were the officers of a 
French man-of-war (vide Wallis Kew, ‘The Dispersal of 
Shells,’ London, 1893). 
H. (Geotrochus) sinistrorsa Deshayes—Buliminus sin- 
istrorsus Pat.—A curious little shell, placed by Clessin 
in the sub-section Pseuwdopartula Pfr. Our specimens, of 
which there are a great number, have been identified as the 
above by Mr. E. L. Layard and others, but agree as 
nearly with Buliminus theobaldianus Gassies, as figured 
in Gassies’ Faune Conch. Nouvelle-Calédonie, pt. 2 pl. iii, 
fig. 9. 
H. (Patula) costulifera Pfr.—Several. 
H. (Patula) confinis Gassies.—Several. 
Bulimus (Placostylus) Alexander Crosse,—Several ex- 
amples of this fine species. 
B. (Placostylus) Edwardsianus Gassies.—Several. 
B. (Placostylus) fibratus Martyn.—Several. 
B. (Placostylus) insignis Petit.—Very abundant, most ot 
the specimens minus epidermis, 
