1.18 DE. J. G. DE MAN ON CEUSTACEA CIIIEI'LT 



the carpus present in a specimen 32 mm. long the following dimensions, from the 

 tirst to the last: — 0-42 mm., 029 mm., 073 mm., 0-42 mm., 0'3 mm., 020 mm., and 

 052 mm. ; the ch'eia is 0"9 mm. long, and the palm is nearly once and a half as long as 

 the fingers. The sixth joint of the carpus, just half as long as the last, is the shortest, 

 the third, which is as long as the first and the second together, the longest, as in 

 Sjnront. propugnatrix, and the chela is almost as long as the last three joints taken 

 together. 



The third pair reach to the middle of the antennal scale, the following are a little 

 shorter. Themeropodites of the third legs, which are ten times as long as broad, carry a 

 row of six spines on their outer surface, of which the last is inserted near the distal end 

 of the lower margin ; the lower margin of the propodites is armed with li or 15 pairs of 

 spinules, those of tlie distal half increasing somewhat in length. The dactyli, which 

 measure one-third the length of the propodites, terminate in two claws, of Avhich the 

 ])osterior is stouter than the other, and, between the former and tiie articulation, the 

 posterior margin is armed with six movable spines, which slightly increase in length 

 distally. The following legs are a little shorter ; the meri of the fourth pair are armed 

 with four, those of the fifth with three spines. 



External maxillipeds and thoracic legs seem to be devoid of epipods. 



Sph'ont. mnablUs, Lenz, of Bare Island (Spengel's Zool. Jahrb., Syst. xiv. 1901, 

 p. 432, pi. 32. figs. 2 a Sc 3), a typical specimen of which was kindly sent me by 

 the Direction of the " Stadtisches Museum " at Bremen, diff'ers as follows : — As in 

 Sjiiront. alcimede, the outer angle of the orbital margin ends in a rounded tooth or lobe ; 

 in the figure in Lenz's paper it appears erroneously as sharp, and in both species there 

 is, just below this angle, a sharp antennal spine, at the level of the upper border of the 

 basal joint of the outer antennye. Spiront. atnahilis carries, however, below this spine, 

 another also sharp tooth, apparently the pterygostomian spine, but tliis is altogether 

 Avanting in Spiront. alcimede. The tliird segment of the abdomen of Spirant, amabilis 

 is less strongly curved, the posterior deflexed part is much shorter in proportion to the 

 anterior than in our new species, and not compressed ; the sixth lias a slenderer shape, 

 being almost three times as long (5 mm.) as broad anteriorly (1'9 mm.), and, according 

 to tlie figure, the telson should carry six pairs of spinules (in the type specimen the 

 telson is wanting). The carpus of the second legs is 7-jointed, in the figure it appears 

 erroneously 6-joiuted ; it agrees with that of Spiront. alcimede, but the chela is as long 

 as the last four joints taken together. There are, however, still more differences in the 

 toothing of the rostrum, &c. (Concei'ning this locality, see Xote A on page 454.) 



Spirontocaris pandaloides (Stimpson). (PL 32. figs. 47, 48.) 

 Hippolyte pandaloides, Stimpson, in Proc. Acad. Nat. Sciences Philadelphia, 1860, p. 34. 



Seven specimens from the Inland Sea of Japan, captured at a depth of six fathoms, 

 bottom sand and weeds, here and there stones. These prawns are, when alive, brilliant 

 emerald-green, and conform to Stimpson's " color viridis." 



The slender fusiform body is moderately geniculated at the third segment of the 

 abdomen, the upper border of the posterior deflexed part making an angle of nearly 45° 



