Mizns.— Notes on the Genera Astacoides and Paranephrops. 477 
young of Arcturus, by Sir J. G. Dalyell, whose account is quoted by Messrs. 
Spence, Bate, and Westwood, in their ** History of the British Sessile-eyed 
Crustacea,” II., p. 870. In this genus the young individuals affix them- 
selves in clusters to the antenne of the mother, clasping the peduncles of 
those organs with their prehensile three posterior pairs of pereiopoda; and 
a specimen of A. baffini, actually exhibiting this mode of attachment, is 
preserved in the collection of the British Museum. The young specimens 
are clustered chiefly on the under-side of the antenne, with the head point- 
ing toward the body of the parent. In this instance no specially modified 
prehensile organ exists, nor, indeed, is such required. 
Arr. LXVI.—Notes on New Zealand Cetacea. By James Hxocrom, M.D., 
[Read before the Wellington Philsophical Society, 1876.) 
T'ursio metis. 
Gray, “Cat. Seals and Whales,” 256 ; Hector, imei N.Z. Inst.," V., 
162; Hutton, Id., VIII., 180. 
Plates. 
This species was founded on a skull in the British Museum, but its 
habitat was unknown until I determined its occurrence on the New Zealand 
coast from an imperfect skull obtained in Dusky Bay in 1872. Two 
specimens were captured by Capt. Fairchild in the same locality in 1876, 
the smaller of which has been described shortly by Capt. Hutton ; and the 
skeleton of the other, which has been placed in the Colonial Museum, I 
have now to describe. 
The total length of the animal in the flesh was noted as 93 feet. This 
agrees with the length of the skeleton on making the usual allowance for 
the intervertebral cartilage and soft parts, as follows :— 
Inches. 
Length of skull à i € 19 
Total length of CAEN. Sites ae KS c 40 
Soft parts of snout vis at i 2 
Caudal.. Ri xs ME xc p 
PORER HU PE 8 
104 = 9ft. 6in. 
Skull.—Cranial portion moderate, rounded behind, with large prominent 
condyles and parietal erests; nasal bones prominent but rounded; posterior 
maxillary area steep; supra-orbital horizontal, with rough margin round 
