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Show 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 Magellan. This species externally somewhat resembles Pterelas magnificus, Dana, but is destitute of the hatchet-like process on the penultimate joint of the first three pairs of legs. JEga belliceps, Stimpson, a Californian species, is distinguished by its more pointed head, and by having only five distinguishable postabdominal segments ; it is somewhat insufficiently characterized. AEga nova?-zealandice, Dana, is very briefly characterized, but is distinguished by the much longer antennae, which in jEga punctulata are not longer than the breadth of the head. The two American species described by Lockington as JEga harfordi and JEga alas- Tcensis do not, I believe, belong to this genus ; the former is probably a species of Cirolana. CORALLANA ACUTICAUDA, Sp. U. (Plate VII. fig. 13.) Body convex, segments punctulated; the last two thoracic segments and the postabdomen 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 segment with its antero-lateral angles rounded and somewhat produced anteriorly beneath the lateral margins of the head. Five segments of the postabdomen 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, triangulate, 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 following 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 narrowing to an acute apex ; both are ciliated on the margins. Length 7 lines. The single example (a female) was dredged amid coral in 35 fathoms, on the Hotspur Bank (S. Atlantic) in lat. 17° 32' S., lone. 35° 45'W. This species is distinguished from the various oriental forms enumerated by Schiodte and Meinert, Nat. Tidskr. 3 R. pp, 286, 299 |