1877.] FROM DUKE-OF-YORK ISLAND. 137 
which the lateral margin of the carapace is 3-toothed, and is distin- 
guished by the peculiar convexity of the hepatic regions, and the 
granulation of the front part of the carapace, and the anterior legs. 
The ambulatory legs are long and slender, the last joint much shorter 
than the preceding. The specimen described by Hess was from 
Sydney, NewSouth Wales; and specimens are in the British-Museum 
collection from the Fiji Islands (Nairai) and Eastern seas. 
I subjoin the description of a species in the British-Museum 
collection’. 
Srsarma (Hotomertopvs) ausryt. 
Sesarma (Holometopus) aubryi, A. M.-Edw. Nouv. Archiv. Mus. 
Hist. Nat. Bulletin, v. p- 29 (1869) ; ix. p. 307, pl. xvi. fig. 3 
(1873). 
Six specimens, four males and two females, of which one bears a 
considerable quantity of ova, were collected. They agree in all 
particulars with A. Milne-Edwards’s description of the species, based 
upon specimens collected at New Caledonia, except that in the figure 
of the abdomen, probably that of a male, the sides are represented 
nearly straight, and the terminal jot as broad at base as the 
preceding ; whereas in the specimens from Duke-of-York Island 
(as is usual in Sesarma and the allied genera) the terminal abdominal 
joint is much smaller than the preceding at its base. 
In the Sesarma (Pachysoma) hematocheir of De Haan (Faun. 
Japon. Crust. p. 62, pl. vii. fig. 4), upon which Milne-Edwards 
founded the genus Holometopus, the front is broader in proportion 
to its depth, the abdomen has the sides more decidedly concave, and 
the terminal joint longer; the differences between the two species, 
however, are very slight, and may depend upon the age of the 
specimen. 
CARDISOMA CARNIFEX, 
Cancer carnifex, Herbst, Naturg. Krabben u. Krebse, i. p. 163, 
pl. xli. fig. 1, g (1796). 
1 SESARMA TENIOLATA. 
Sesarma teniolata, White, List Crust. Brit. Mus. p. 38 (1847), sine deser. 
Carapace quadrate and very convex, the groove defining the gastric region 
deep, the lateral margins with two prominent teeth (including the external 
orbital tooth). Front nearly vertically deflexed, the anterior margin sinuated, 
the median sinus wide ; postfrontal lobes four, not very abrupt; carapace behind 
the lobes slightly. granulated. Anterior legs robust ; arm with a very strong 
tooth near the distal extremity of its upper margin; wrist closely covered with 
granules or small tubercles, each of which is itself crenulated ; hand granulated 
externally, and with a strong granulated ridge on its inner surface; upper 
margin with a longitudinal, comb-like, closely pectinated ridge; mobile finger 
with a longitudinal ridge on its upper surface marked with about sixty trans- 
verse strix. Ambulatory legs compressed and slightly hairy. Abdomen of male 
with the last joint not half the width of the preceding. Length and breadth of 
carapace about 12 inch. 
Hab. Philippine Iskands (Cuming, coll. Brit. Mus.). 
This species is allied to S. tetragona, Fabr., but is distinguished from it by the 
©urious longitudinal comb-like ridge on the upper margin of the hand and the 
‘ransyersely striated ridge on the mobile finger. 
