Species of Maioid Crustacea. 3 



Achmopsis spinulosis, Stm., also from the Cape of Good 

 Hope, of which specimens of both sexes are in the collection, 

 and which is the only other known species of the genus, there 

 are three spinules on the gastric region and several upon the 

 sides of the carapace. The genus Achceopsis appears to repre- 

 sent Inachus in the southern hemisphere. 



I dedicate this species, which is certainly one of the most 

 striking of those here to be described, to Dr. Gtinther, F.R.S., 

 Keeper of the Zoological Department, by whose continual 

 kindness and encouragement my studies have been so greatly 

 facilitated. 



Eucinetops ? Stimpsoni, sp. n. 



Carapace subpyriform and convex, upper surface without 

 spines or tubercles. Rostrum deflexed ; the spines of which 

 it is composed small, flattened, acute, and separated by a 

 narrow fissure. Immediately behind the eyes are two small 

 blunt prominences ; and a third, at a little distance, represents 

 the postocular spine. There are two very small tubercles at 

 the distal end of the slender basal antennal joint. The second 

 and third joints are not, as in E. Lucasii, very broad, but 

 cylindrical. Anterior legs (in the female) very slender and 

 smooth. Both the body and legs are pubescent. Length of 

 carapace § inch. 



Hah. N.E. coast of Australia {Cuming). 



This species is represented only by a single female spe- 

 cimen. 



I am in some doubt as to whether this species should not 

 be made the type of a genus distinct from Eucinetops. It 

 resembles the Californian E. Lucasii, Stimpson, in the small 

 and deflexed rostrum, the great length and mobility of the 

 eyes, the very small epistome, &c, but differs in the more 

 elongate-triangular carapace, and in the non-dilatation of the 

 second and third joints of the flagellum of the antenna?. If 

 distinct as a genus, I should propose to designate it as Ana- 

 cinetops. It comes very near to Camposcia, but is dis- 

 tinguished by the presence of a distinct rostrum and by the 

 longer, slenderer eye-peduncles. 



Halimus truncatipes } sp. n. 



Carapace elongate-ovate, moderately convex; gastric region 

 with about eleven tubercles, of which four anterior are ar- 

 ranged in a transverse series, and three posterior in a median 

 longitudinal series, the others are lateral ; cardiac region with 

 two obtuse tubercles, and, posterior to these, three in a longi- 

 tudinal median series ; the last of these, on the posterior 

 margin of the carapace, is an acute spine. There are three 



