188 Transactions. — Zoology. 



from the original description: "T gathered this species at 

 Campbell Island, at depths of from 4 to 5 metres, and on the 

 coast of Stewart Island, under similar conditions. It is in 

 form a very remarkable Crustacean, combining, as it were, the 

 characters of the Porcellanidce with those of the PaguridcB. 

 It lives in the midst of Algae, and does not seek, like the latter 

 animals, a place of shelter in abandoned shells. The carapace 

 is semi-oval in shape, and ends in front in a pointed rostrum, 

 which is wide at its base and slightly convex on the sides. 

 The upper margin of the orbit is smooth and raised a little 

 behind. The ocular peduncles extend a little beyond the apex 

 of the rostrum. Almost immediately behind the outer angle 

 of the orbit the edge of the carapace carries two spines, the 

 first being much smaller than the second, which is flattened 

 and very convex on its outer edge. Behind this projection, 

 about 1 mm. from its base, there is placed a much stronger, 

 more distinct spine, which is obtuse at its apex. In front of 

 it is a very small tubercle, which makes a slight projection on 

 the outer border of the carapace. Behind this spine there is 

 a second, which projects transversely outwards and back- 

 wards. Its posterior edge is stra.ight, the anterior convex. 

 The apex, whether simple or bifid, is always thickly furnished 

 with fine hairs (mousse). Behind this projection the edge of 

 the carapace is straight, and is continued back as far as the 

 articulation of the abdomen. The dorsal surface of the cara- 

 pace is everywhere covered with fine granulations. The ab- 

 domen is somewhat membranous, translucid, and only fur- 

 nished with plates at its posterior extremity. It bears, in the 

 anterior portion, a pair of short and slender feet. The an- 

 terior antennae are as long as the ocular peduncles, and are 

 terminated by a bunch of hairs. The outer antennae are very 

 long and slender. The first pair of feet are strongly granular, 

 and the outer and inner faces of the hand and of the fingers 

 are covered with fine tufts of hairs arranged longitudinally. 

 The following pairs of feet are covered Nvith somewhat fine 

 granulations, which on the anterior margin of the 3rd and 4th 

 joints are produced into small spines. The last joint ends in 

 a hooked claw, and its posterior margin bears fine short hairs 

 along its w^hole length. In the largest specimens collected 

 by me the carapace measures 13 mm. in length and 11 mm. in 

 width." 



GALATHEIDEA. 



Fam. POECELLANID^, Henderson. 



Carapace broadly ovate, smooth, regions faintly defined ; 

 front usually trilobed, processes never of great length. Cheli- 

 pedes broad and often flattened ; ambulatory limbs robust 

 and of moderate length. Antennules concealed ; antennal 



