167 
S. Lavendera, as well as in the small size of the round ocelli in the 
middle of all the wings; but the slightly ashy fascia on the wings, 
between the ocellus and the apical margin, is much more uniform in 
width and nearly straight ; the fore wings are slightly but acutely 
hooked at the tips; the fore margin is ashy coloured, as is also the 
fore margin of the thorax ; in the middle of the discoidal cell is a 
scarcely distinct light-brown angulated fascia, which is continued 
(although much nearer the base) across the wing to the inner mar- 
gin, being also angulated in this portion; in the middle of the wing 
is a small round ocellus, the centre being vitreous, edged with bright 
red, succeeded by a ring of buff, which is surrounded by another 
slender ring of red; at a short distance beyond the ocellus is a red- 
dish brown undulated striga running across the wing, nearly parallel 
with the apical margin, the waves following the same direction as in 
S. Lavendera, and not as in S. Jorulla; this striga forms the inner 
margin of a moderately wide greyish fulvous space, which is inclosed 
on its outside by a corresponding row of reddish brown lunular spots, 
the one next the costa being the widest ; the moderately wide apical 
margin is uniformly pale orange. The hind wings have a very indi- 
stinct curved fascia at some distance from the base, darkest next the 
anal margin, as is the case with the other markings of these wings. 
The central ocellus is not above half the size of that of the fore wings ; 
the centre consists of a small round bright claret-red dot inclosed 
within an orange ring, and this within a very fine red one. ‘This is 
followed by a rather strongly dentated striga of reddish brown, fol- 
lowed by a row of small lunular spots of the same colour, the inclosed 
space being irrorated with grey atoms. 
The antennz are fulvous-red and broadly feathered. 
5. OBSERVATIONS SUR LES ANIMAUX DE QUELQUES GENRES 
pe Moxuiusaves ACkPHALES (CHAMOSTREA, GLAUCONOME, 
Circe AND Capsa). Par G. P. DesHayes. 
(Mollusca, Pl. X XI.) 
Genus CuamostrEA, De Roissy. (Pl. XXI. figs. 4-7.) 
(Cleidotherus, Stutchbury.) 
Animal irrégulier, enveloppé d’un manteau mince bordé d’un 
muscle orbiculaire étroit ; les bords simples joints dans presque toute 
la circonférence ; une trés petite ouverture antérieure située 4 langle 
antérieur et inférieur du manteau un peu au dessous de lextrémité 
du muscle adducteur antérieur ; deux siphons postérieurs dépassant 
& peine les bords du manteau; ils sont un peu comprimés et en- 
titrement séparés; leur bord terminal est simple; deux muscles 
adducteurs trés inégaux, l’antérieur trés long, trés étroit, occupant 
presque toute la hauteur du cété antérieur de Panimal ; muscle pos- 
térieur plus court et plus épais ; pied petit, comprimé, linguiforme ; 
bouche trés petite, accompagnée de quatre petites palpes labiales 
