278 My. E. J. Miers on Crustacea from 
ophthalmic segment is just visible between the bases of the 
eye-peduncles. The postabdomen is clothed with scattered 
hairs, and has the dorsal surface of the antepenultimate and 
penultimate segments protected by imperfectly calcified 
plates; the terminal segment is somewhat transverse, and 
with ashallow emargination at its distal end. Hye-peduncles 
slender and longer than the width of the front; their basal 
scales small, with acute apices. Antennulessmall. Antenne 
about as long as the animal, with a very small basal acicle ; 
penultimate joint of the peduncle shorter than the terminal 
joint; joints of the flagellum with very short sete. Outer 
maxillipedes very hairy. Right chelipede very little larger 
than the left; both are rather thinly clothed with longish 
hairs; with the merus unarmed; carpus with four or five 
short spines on their inner and upper margins ; hands rather 
narrow-ovate (the left narrower than the right), with short 
spinules along the upper margins; fingers in the right 
about as long as, and in the left a little longer than, the palm, 
with acute apices, and rather strongly dentated along their 
inner edges. Second and third legs slender and hairy, with 
the penultimate longer than the antepenultimate jot, and the 
dactyli long, curved, and slightly twisted. Fourth and fifth 
legs slender, feeble, and hairy; in the fourth leg the small 
curved dactylus closes against the produced infero-distal 
scabrous lobe of the preceding joint; the fifth legs terminate 
in a very small but perfect chela; the left uropoda are much 
larger than the right, and hairy. Colour (in spirit) yellowish 
white ; legs pinkish. Length of cephalothorax 5 lines (nearly 
11 millim.), of right chelipede, when extended as far as its 
conformation will allow, 94 lines (20 millim.). 
The single specimen examined is a male. 
In most of its characters (e. g. the form of the carapace, 
hairy postabdomen, elongated eye-peduncles, which are ap- 
proximated at base, short antennal flagella, and subequal 
horizontal chele, whose fingers are acute at the tips) this 
species belongs to Isocheles; but the antennal flagella are 
clothed with very short sete, and the dactyli of the ambulatory 
legs are very slightly contorted. 
Sptropagurus elegans, sp.n. (Pl. XVI. fig. 5.) 
This is a very interesting addition to a genus whose only 
representatives hitherto known are from the Japanese seas 
and the West Indies (Barbadoes). 
In general appearance it very much resembles the well- 
known HLupagurus Prideaucit, having similarly-formed but 
