AAs 
nr 
20 STALK- AND SESSILE-EYED CRUSTACEA 
In the specimens in the Collection of the British Museum, the 
antero-internal angle of the external maxillipeds is scarcely notched. 
This species is found on the coasts of Australia, at Borneo, the 
Philippines, Japan, and the Fiji Islands; and is subject to considerable 
variation in the density and colour of the hair of the carapace. 
20. Pilumnus tomentosus. 
Pilumnus tomentosus, Latr. Eneyel. Meth. x, p. 125, (1825); M. 
Edw. Hist. Nat. Crust. i, p. 418, (1834). 
Body of a blackish-brown colour, covered with a very short down. 
Lateral margins with three small conical tubercular teeth, and several 
small tubercles on the sides of the carapace like those of the margins. 
Front divided into two rounded crenulated lobes. Upper orbital 
margin with three raised granules. Right hand large, strongly granu- 
lated externally ; fingers blackish, striated, with white tips. Length 
2 in.; breadth 1 in. (Latr.). 
New Zealand (Coll. Brit. Mus.). 
This species, according to M. Edwards, differs from the preceding 
only in its short, close hair, and in the granulations extending over the 
whole of the lower part of the hand, A series of specimens in the 
British Museum shows that either the right or left hand may be the 
larger. It is also found in Bass’ Straits and at Port Jackson. 
PILUMNOPEUS. 
Pilumnopens, A. M. Edw. Ann. Soc. Entom. France (ser. 4) vii, 
p. 277, (1867); Nouv. Archiv. Mus. Hist. Nat. iv, p. 82, (1868). 
Resembles Pilumnus, but the carapace and legs are without the long 
hairs so characteristic of that genus, the teeth of the antero-lateral 
margin are broad (never spinous), and there is an external orbital 
hiatus, as in Panopeus. 
21. Pilumnopeus serratifrons. 
Ozius ? serratifrons, Kinahan, Journ. Roy. Dublin Soe, i, p. 118, 
pl. iv, fig. 1, (1856). 
Carapace slightly depressed, its anterior portions with tuberculated 
curved hairy ridges. Front produced, lamellar, directed downwards, 
two lobed, a small triangular tooth at base of each lobe, the lobes finely 
