66 CAni, itovALi.irs, A.vrriiii^oDA iiviMorniDKA. vmiLiDyi;. 



as the second. Tlio tiagelluui is sleiidcr, cveiily tapering towards the poiut, considerably 

 loiiger than the peduncle (12:7); the two terminal joints are distinct. (Pl. TX, fig. 19). 



The .leeond pair of antmiiKc (Pl. IX, tig. 15) ai-e five-joiiitcd in the feniale, the basal 

 joinl is the .shortest. 



The first and second segments of the perrion are equal in length, shorter than the 

 others; the iifth segment is the longest, the two succeeding ones scarcely shorter. 



The carpus of the firf-t. pair of pereiopoda (PL IX, fig. 20) is a litth,' slioi'ter than 

 the metacarpus, the posterior margin straight, sinooth; at the lower posterior corner there 

 is a single bristle. The posterior margin of tlie metacarpns is straight, reguiarlv serrated. 

 The dactylus is shorter than half the metacarpus, serrated at the posterior margin. 



The f^econd pair (Pl. IX, hg. 21) have the carpus and metacarpus equal in length; 

 the carpal process is almost as long as the posterior margin of the metacarpus, regularlv 

 serrated. 



The third, and fourth pairs (Pl. IX, fig. 22) have the tibia a little longer than the 

 carpus, not tumid; the metacarpus is robust, minutely serrated along the posterior margin; 

 tlie dactylus is onh- a fourth shorter than the metacarpus. 



The fiftli and si.vih pairs (Pl. IX, fig. 23 — 25) are almost equal in length, a little 

 longer than the fonrth pair (16:13); the margins of the tibia and carpus are sniooth, the 

 anterior margin of the metacarpus is minutely serrated, or rather armed with a dense 

 row of very short regular spines. The dactylus is about as long as half the metacarpus, 

 provided with a short row of sharp spines at the anterior margin. 



The seventh pair are shorter than the fourth; the femur is mueh longer than the three 

 succeeding joints together. In a young specimen the dactylus carries a cnrved spine sub- 

 apically and a row of short hairs. (Pl. IX, fig. 26.) 



The pleon is as long as the last four pereional segments; the lower margins are 

 straight, smooth. 



The peduncles of the pleopodn are longer than the rami. The outer i'amus is 9-jointed, 

 the inner lO-jointed. (Pl. IX, tig. 27.) 



The second and third ural segments are coalesced, shorter than the first. The hinder 

 corners are a little produced backwards, but not so far as half the length of the telson. 



The peduncle of the first pair of uropoda (Pl. IX, fig. 2S) is longer than the 

 rami, linear, not broader than the peduncle of the second pair. The rami of the first 

 two pairs are lanceolate, coarsely serrated along both margins; the exteriör ones are a little 

 shorter than the interiör. The peduncle of the third |)air is considerably longer than 

 the rami, as broad tlie peduncle of the preceding pair, but shorter than the last coalesced 

 ural segment. The rami are shortly lanceolate; the interiör is the longest, minutely serrated 

 along both margins; the exteriör is smooth along the outer margin, minutely serrated along 

 the irnier. 



The telson is almost circular, longer than hali' the peduncle of the last pair of uropoda. 



