406 Surg.-Capt. A. Alcock on 



The fouvtli and fifth pairs of legs are filiform, granular, 

 and in the distal third hairy. 



An egg-laden female from Station 120, 240 fathoms, has 

 the following dimensions : — Length of carapace 9'5 millim., 

 greatest breadth a little over 10 millim., length of cheliped 

 about 13 millim., length of third leg 3;j millim., length of 

 fourth leg 11 millim. 



The most remarkable character of this species is the great 

 size of the external orbital spines. 



94. Ethusa 'pygmcea^ sp. n. 



Carapace and appendages very finely and closely granular ; 

 the length of the carapace not quite equal to the greatest 

 breadth. The front is bilobed and four-spined ; the antero- 

 lateral or external orbital angle forms a spine, much as in 

 the preceding species, only that it does not reach to the level 

 of the tips of the frontal spines ; the lateral margins are 

 strongly convex in their branchial extent and then converge, 

 so that the breadth of the carapace in front is only two thirds 

 of its breadth behind. The cervical and cardio-branchial 

 sutui-es are well marked and the gastric, cardiac, and intestinal 

 regions are all quite plainly delimited. 



The eye-stalks are slender, the eyes are slightly dilated, 

 and the orbits are very imperfect. 



The chelipeds are equal and the fingers are closely appos- 

 able and finely crenulate in the distal half to two thirds of 

 the cutting-edge. 



The second and third legs have long scimitar-like dactyli ; 

 the fourth and fifth legs are moderately stout. 



An egg-laden female from Station 115, 188-220 fathoms, 

 has the following dimensions : — Length of carapace 6 millim., 

 breadth nearly 7 millim., length of cheliped about 8 millim., 

 of third leg 22 millim,, of fourth leg 8 millim. 



This species closely resembles the preceding, from which 

 it is distinguished by its much smaller size, by the better 

 definition of the regions of the carapace, by the smaller 

 antcro-lateral spine, by the granulation of the thoracic legs, 

 and by the more robust fourth and fifth pairs of legs. 



95. Cymonovwps glaucoimna^ q^^^' et sp. n. 



Carapace subcircular ; it and the appendages arc very 

 closely and finely granular beneath a dense pubescence. The 

 front consists of three deeply cut lobes, the middle one of 

 which is the largest and most prominent. Tlie middle lobe 



