GLOSSOCEPHALUS SPINIGER. 109 



The first and second pairs of uropoda reach beyond the apex 

 of the last pair. 



Syn. 1887. Glossocephalus spiniger, C. BOVALLIUS. 35, p. 35. 



The first pair of perceopoda (PL V, fig 8) have the same form 

 as in the preceding species, but the carpal process is longer, armed 

 with a single, very long, spine-like tooth on the outer margin, and has 

 the apex produced into a long, curved, spine-like tooth; the metacarpus 

 is much longer than the stem of the carpus, with the hind margin "as 

 long as the front side of the carpal process; the spine-like tooth on 

 the hind margin is nearly half as long as the hind margin; the front 

 margin is convex, with the long apical tooth nearly straight and sharp- 

 pointed; the dactylus is curved, smooth on the hind margin, and is 

 two-thirds as long as the metacarpus. The second pair (PL V, fig. 

 9) have the carpus similar to that in the first pair; the metacarpus is 

 much longer than the stem of the carpus, with the hind margin concave, 

 and entirely smooth ; the front margin is convex, with the apex project- 

 ing into a feebly curved tooth, which is somewhat shorter than that 

 in the first pair; the dactylus is nearly half as long as the metacarpus 

 with the hind margin smooth. The third and fourth pairs are equal 

 in length, more robust than in the preceding species, and much shorter 

 than the fifth pair; the third pair are scarcely four times as long as 

 the second. The femur of the fifth pair is narrower than in Glosso- 

 cephalus Milne- Edwardsi, being more than four times as long as broad; 

 the tibia is twice as long as broad ; the carpus is a third part longer 

 than the tibia, and about three times as long as it is broad at the apex; 

 the metacarpus is dilated, lanceolate, and somewhat shorter than the 

 carpus. The sixth pair are a trifle longer than the fifth; the meta- 

 carpus is shorter than the two preceding joints together. The femur 

 of the seventh pair is not half as long as that of the sixth, and is 

 much longer than all the following joints together. 



The ovitectrices are crescent-shaped (PL V, fig. 6). 



The pleon is much shorter than the last three perseonal segments 

 together, and is dorsally feebly carinated. 



The last coalesced ural segment is a fourth longer than broad. 



The first pair of uropoda reach far beyond the apex of the last 

 pair; the peduncle is a third part longer than the outer ramus, which is 

 nearly twice as long as the inner; the peduncle is much longer than the 



