446 Rev. T. R. E.. Stebbing on some new 



appearance it comes near to all the three genera Proholium, 

 Danaia^ and Amphilochus^ it seems necessary to assign it in 

 solitary grandeur to a genus by itself. Its length is little 

 more than an eighth of an inch. 



The antennse are subequal. Of the upper, the basal joint 

 is the longest and stoutest, though shorter than the head 

 in the lower, the penultimate and antepenultimate joints are 

 slender, and the ultimate inconspicuous. The flagella of both 

 pairs of antennse consist of few and small articulations. There 

 IS no secondary appendage. The head has a small, slightly 

 depressed rostrum ; the lateral margin is produced into a sharp 

 point below the upper antennse. The eyes are round. 



The coxae of the first segment are almost concealed, only 

 the upper margin appearing above the coxse of the second 

 segment. The first gnathopods are simple or almost simple. 

 The hand is short, with sides nearly parallel, and some hairs 

 in the neighbourhood of the palm. The finger is shorter than 

 the hand, only slightly curved, and set a little way from the 

 antero-distal extremity of the hand, from which point there 

 springs a long hair. The wrist is longer than the hand; near 

 its distal hinder extremity there projects what seems to be a 

 rather pronounced spine, unless 1 have been deceived by the 

 convergence of two hairs — a source of error which has more 

 than once led observers astray, and which cannot be easily 

 obviated when specimens are too rare to permit of their being 

 freely handled. 



The second gnathopods resemble those of AmpMlochus. 

 The hand is triangular, with the same antero-distal tooth as 

 in AmpMlochus ; the palm is denticulate. The wrist is pro- 

 duced, though not so far as to reach the palm ; from its ex- 

 tremity, and from the inner side of the produced portion, spring 

 some long hairs. The finger is remarkable : it curves over 

 and beyond the palm and Avrist, ending in a long, straight 

 needle-like portion, not opposable, it would seem, to any por- 

 tion of the limb. 



The pereiopoda are subequal, all moderately long and 

 slender. The coxae of the second pair are large, similar in 

 shape to those of Dana'ia duhia^ but very slightly denticulate 

 round the margin ; while the lower margins of the preceding 

 pairs of coxae are very sharply but unevenly denticulate. The 

 last three pairs of pereiopoda are remarkable for their large 

 membranaceous thighs, the antepenultimate pair being oblong- 

 ovate and having on the lower margin an irregular denticula- 

 tion like the coxee above mentioned. The last two pairs are 

 more rounded and denticulated evenly. The telson is lanceo- 

 late, excavated above. The pleopoda are all biramous. The 



