166 Mr. A. G. Butler's 
reddish -pitchy impressed spots; spines purplish -black, 
nigose and pilose ; ventral surface black, spotted Avith 
orange ; central area bearing conical projection, casta- 
neous. 
Aneiteum, New Hebrides, Cuming. 1 specimen. B.M. 
Somewhat intermediate in character between G. tceniata 
and G. IVestringii, and remarkable for the unique colour- 
ins; of the ventral surface of the abdomen. 
47. G. albiventer, n. sp. PI. IV. fig. 6. 
Female ; length of abdomen 1 1 line ; breadth at widest 
part, excluding spines, 3^ lines ; posterior lateral spines 
1 line, anterior \ a line ; of posterior margin § of a line. 
Cephalothorax normal ; abdomen transversely oblongo- 
ovate, with six angles bearing the spines ; two on anterior 
lateral margins acute, short, directed obliquely forwards ; 
two on posterior lateral margins twice as long, robust, 
suddenly pointed at apex, directed obliquely backwards 
with a slight curve ; and two short, acute, nearly parallel, 
on posterior margin. 
Cephalothorax, falces, maxillre, labium and legs dark 
olivaceous ; sternum testaceous ; abdomen testaceous, with 
four central and nineteen marginal fen-uginous impressed 
spots ; spines ferruginous ; ventral surface white speckled 
with black, Avith spines, impressed spots and conical pro- 
jection, ferruginous. 
Dorey, Ncav Guinea, JVallace. 1 specimen. B.INI. 
Remarkable for the A\'hite colour of the A'entral surface 
of the abdomen : it is allied to G. Hebridisia. 
48. G. Westringii. 
G aster acantha Westringii, Keyserling, Sitzungs- 
ber. der Isis zu Dresden, p. QQ, pi. 1, fig. 2 (1863, 
edit. 1864); Koch, Arachn. Austral. 1, p. 3, n. 4; 
pLl, fig. 2(1871). 
Australia, Koch ; " Georgia" ! B.M. 
Koch says that this species bears a great resemblance 
to G. fornicata and G. transversa : our locality is pro- 
bably Avrong, as we have a nearly allied species fi'om the 
Isle of Pines (not Atlantic). 
49. G. moUusca. 
G aster acantha mollusca, Koch, Arachn. Austral. 
l,p. 7,n. 6; pL 1, fig. 4 (1871). 
" NcAv Caledonia," Koch. 
AUicd to G. irradiata of Walckenaer. 
