38 
British Museum; but in H. auriculata the whorls are comparatively 
rounded, and the body-whorl is quite round instead of having a sharp 
edge. H. auriculata is besides, in many individuals, dimpled with 
small depressions. These differences may be sufficient in the present 
state of our knowledge to constitute specific distinction ; but whether 
they are in reality strong enough to form such a separation, may 
well be doubted. My present impression is, that H. awriculata and 
H. Listeri are identical; but I shall return to this subject when I 
have examined the whole of the cognate series in Mr. Cuming’s 
collection. 
Hexrx (Carocouta) Parmuna. Car. testé valde complanatd, um- 
bilicatd ; anfractibus 4, lineis incrementi striatis, ultimo maximo, 
acuto ; fusca, lined brunned suturam juxta albam fasciata, margine 
anfractiis ultimi acuto, albo ; peritremate deorsiim flexo auriculart ; 
labii antic? sublanceolati subalbidi margine subreflexo. 
Long. 2; lat. 3 poll. 
Hab. ad Argao insule Zebu, arborum excelsorum truncis herens. 
Legit H. Cuming in sylvis. 
This is a delicate though not showy species. 
Var. a. Elevatior, obscure albens fascid suturali et centrali fuscis 
ornata. 
Hab. ad insulam Negros, truncis arborum heerens. 
Legit H. Cuming in sylvis. 
Hexix (Carocota) Siquisorensis. Car. testd subcomplanata 
anfractibus 4, lineis incrementi creberrime striata ; ultimo maximo, 
acuto ; labii subreflexi limbo superiore haud deorsum depresso ; 
Suscd, epidermide cinerascente cooperta. 
Long. 4; lat. 16 poll. 
Hab. ad radices arborum et arbusculorum in insula Siquijor. 
Legit H. Cuming in sylvis. 
The ash-coloured epidermis which covers this species, upon im- 
mersion in water, disappears, to reappear when it is dry. When it 
is wet the dark brown ground-colour is exposed. The shell varies 
to a lighter whitish-brown hue. The sutural line is darker than the 
general colour, and the lower surface of the expanded edge of the lip 
is dark brown and shining in each variety. The termination of the 
upper edge of the lip is on the same line with the edge of the body- 
whorl. 
Hetix (Carocorta) Tuersires. Car. testd subcomplanatd, gibbd, 
tenuissimd, hyalind, diaphand ; anfractibus 4, lineis incrementt cre- 
berrime striatis, ultimo antic? acuto, postice subitd rotundato, gibbo ; 
aperiurd magna ; labii antic? reflexi limbo subreflexo, flavescente ; 
anfractibus suturam versus et medio castaneo-fasciatis ; nucleo 
castaneo. 
Long. $; 12 poll. 
Hab. ad Calopan in insula Mindoro, foliis arborum heerens. 
Legit H. Cuming in sylvis. 
The deformed appearance of this species arises from the flattened 
