302 
WEST INDIES AND SOUTH AMERICA 
Other characteristic members of the Helicidae found were 
Thelidomus aspera, Fer., and Eurycratera jamaicensis , Gmel., both 
occurring in Manchester and Westmorland and the latter at Stoney 
Hill, near Kingston, as well; two species of Bialeuea , Albers, D. 
conspersula, var. fuscocincta , Ads., at Walderston, and D. subconicci, 
Ads., at Constant Spring and Port Antonio; four species of Zaphy- 
sema , Pils., all of which were taken in Manchester, two also in 
Westmorland, and one, Z. tenerrima, Ads., had a still wider dis¬ 
tribution occurring also in the Bog Walk ; Hemitrochus gmmmicola , 
Ads., at Mandeville and Constant Spring. Six species of the curious 
bee-hive shaped Sagda, Beck, were found, and probably more were 
seen and passed over on account of the strong resemblance of the 
different species to one another. The largest form found, S. magna , 
was only taken at Mackfield, and the small transparent S. pila , 
Ads., was tolerably frequent at Walderston. The handsome Zebra 
undata , Mull., was abundant at Spanish Town, adhering to trees so 
firmly as to be removed with difficulty. 
Several species of the graceful Gylindrella were taken, the white 
shells when hanging from limestone rocks looking like delicate 
stalactites, while the small, slender, dark brown specimens resembled 
cigars in miniature. Examples of Lia, Albers, and Macroceramus , 
Guilding, were also found. Specimens of the carnivorous Glandina , 
and of the ugly coriaceous slug Vaginula , were met with. Among 
the freshwater forms Semisinus lineolata , Ads., was perhaps the most 
characteristic; it was found both in the Rio Cobre, and also near 
Mackfield. Species of Neritina occurred at the latter locality as well 
as near Port Antonio. 
A fairly good series of the Helicinidae was obtained. Besides the 
type Helicina neritella , Lam., which was widely distributed, occurring 
at Mackfield, Mandeville, Walderston and Port Antonio, there were 
found species of the subgenera Poenia, Ads., Alcadia, Gray, Eutro- 
chatella, Fischer, and Lucidella , Swainson. E. josephinae , Ads., var. 
pulchra , Ads., taken at Mackfield, may be mentioned as an especially 
beautiful form with its delicate plaited frill round the periphery; 
when attached to the limestone rock its yellowish grey colouring 
renders it cryptic. The dark reddish-brown, hirsute epidermis of 
A. palliata , Ads., and allied species makes them cryptic also when 
found in the soil under pieces of rock or dead leaves. 
Two species of the beautifully coloured and polished Proserpina, 
Gray, were taken: P. nitida , Sow., occurred in great numbers near 
Mandeville, it was also found at Walderston, and its variety, 
planulata, Ads., at Mackfield; this is larger and varies from canary 
