116 
MB. A. O. WALKER ON A COLLECTION 
G-oniosoma injequale, n. sp. (Plate YIII. fig. 4.) 
Frons sexdentata. Margo antero-lateralis 7-dentatus, den- 
tibus 2 et 5 minoribus. 
Carapace rather convex, very finely granulate, with transverse 
interrupted beaded lines, one of which crosses the gastric region 
and has a group of larger granules in front of it and on each side. 
Front prominent, with, six teeth, including orbital angle, the 
central pair the longest. Upper orbital margin with two small 
fissures and finely toothed. Antero-lateral margin with seven 
teeth, the first (the external orbital angle) being the largest, and 
the second and fifth the smallest ; the third has a small accessory 
tooth at the base of its hinder margin. Chelipedes have the 
arm finely granulate and furnished with five prominent spines on 
the anterior border, of which the first is the smallest and the 
fifth situated some distance from the fourth ; on the hind margin 
one spine at the distal extremity and another a little behind it. 
Wrist with two spines. Hand with three spines — one springing 
from the point touched by the overlapping part of the wrist, the 
other two near to and at equal distances from the base of the 
movable finger, where there are three tubercles. Fingers loug, 
slender, and strongly carinated. Second pair of legs as long as 
the first. Merus of last pair of legs haviug a spine at the distal 
extremity of the hind margin. Length, of carapace T 7 ^ in. (=1’3 
centim.). Width of carapace T 9 2 in. ( = 19 centim.). 
Caphyra Archeri, n. sp. (Plate IX. figs. 4, 5.) 
Carapax orbicularis albo-nitens. Frons prominens bilobata, 
dente magno utrinque instructa. 
Carapace almost circular, finely granulate. Front of two semi- 
circular lobes, with a prominent tooth, formed by the anterior 
orbital angle, behind them ; the lobes, teeth, and antero-lateral 
margin of the carapace finely denticulate. Chelipede (the right 
wanting in the single specimen) large ; the hand about three 
fourths the diameter of the carapace, widening slightly towards 
the base of the fingers, and granulate, more coarsely on the under- 
side. Remaining legs short and robust, the last joint short and 
curved. Length (including front) 2| lines ( = 4’75 millim.). 
Width 2 lines (=4 millim.). 
Polyonyx cometes, n. sp. (Plate IX. figs. 1-3.) 
Carapax transverse ovatus. Chelipedes magni supra crinibus 
longis instructi ; subtus albi, nitentes. (Coll. Brit. Mus.) 
