78 ZOOLOGICAL COLLECTIONS MADE DURING [Jan. 4, 



A single specimen was found attached to the fins of a mullet-like 

 fish in Wolsey Sound, in the Straits of Magiellan. 



This species externally somewhat resembles Pterelas magnificus, 

 Dana, but is destitute of the hatchet-hke process on the penultimate 

 joint of the first three pairs of legs. 



JEga belUceps, Stimpson, a Californian species, is distinguished 

 by its more pointed head, and by having only five distinguishable 

 postabdominal segments ; it is somewhat insufficiently characterized. 

 ^ga novcB-zealandicE, Dana, is very briefly characterized, but is 

 distinguished by the much longer antennce, which in ^ga jmnctulata 

 are not longer than the breadth of the head. The two American 

 species described by Lockington as jEya harfordi and Mga alas- 

 kensis do not, I believe, belong to this genus ; the former is probably 

 a species of Cirolana. 



CoRALLANA ACUTiCAUDA, sp. n. (Plate VII. fig. 13.) 



Body convex, segments punctulated ; the last two thoracic seg- 

 ments and the postabdornen hairy. Head transverse ; produced 

 anteriorly into a small median rostriform lobe that projects between 

 the bases of the antennules. Segments of the body subequal and 

 rounded, and not produced at the postero-lateral angles ; first seg- 

 ment with its antero-lateral angles rounded and somewhat produced 

 anteriorly beneath the lateral margins of the head. Five segments 

 of the postabdornen are exposed (but scarcely distinguishable, on 

 account of the pubescence with which they are covered) ; the third 

 segment is produced on each side into a truncated and emarginate 

 postero-lateral lobe ; the terminal segment is rather small, triangu- 

 late, covered above with short, dense, close pubescence, but with a 

 smooth, naked, longitudinal median line. Eyes large, black, distinctly 

 faceted, and situate on the sides of the head. Antennules contiguous 

 at base, their basal joints considerably enlarged posteriorly (but not 

 anteriorly produced beyond the plane of the head), inserted into 

 semicircular cavities in the anterior margin of the head ; the follow- 

 ing joint slender; flagellum short, not reaching to the posterior 

 margin of the head. Antennae not in contact at their bases (which 

 are concealed beneath the enlarged basal joints of the antennules), 

 with the first three joints short, the fourth and fifth subequal, longer 

 and slender ; flagellum reaching to the posterior margin of the third 

 segment of the body. The coxae of the second and third legs are small 

 and rounded posteriorly, those of the following legs larger, with the 

 postero-lateral angles acute. The rami of the uropoda spring from 

 a broad base (which is produced at its distal and internal angle into 

 a strong acute lobe) ; the outer ramus is slender and acute, the inner 

 broad but uarrowing to an acute apex ; both are ciliated on the mar- 

 gins. Length 7 lines. 



Thesingleexample(afemale)was dredged amid coral in 35 fathoms, 

 on the Hotspur Bank (S. Atlantic) in lat. 17° 32' S., long. 35° 

 45' W. 



This species is distinguished from the various oriental forms enu- 

 merated by Schiodte and Meinert, Nat. Tidskr. 3 R. pp. 286, 299 



