18 
MAMMALIA. 
SiRENIA. 
Rhytina borealis. Dr. Alex, Brandt Las found a piece of 
dried skin in the St. -Petersburg Museum wLicL lie believes 
belonged to this animal. He describes it in Mem. Acad. St. 
Petersb. 1871, vol. xvii. no. 7 (pp. 28, with a platc) . It is rough 
and furrowed, like the bark of a tree, an appearance produced 
by a parasite rhytiri(s) j normally the skin was smooth, 
and sparsely covered with bristle-like hairs. 
Cetacea* 
W. D. Murison attributes the disappearance of Whales from 
the New-Zealand shores to the fact of their wholesale destruction 
during the breeding-season. P. N. Z. Inst. iii. pp. 68-70. 
Prof. Turner having had the opportunity of examining the 
gravid uterus of an Orca gladiator, has published a description 
of it in a memoir On the gravid Uterus, and on the arrange- 
ment of the foetal membranes in the Cetacea.^^ Trans. E. Soc. 
Edinb. xxvi. 1871, pp. 467-504, pis. 17 & 18, and woodcuts. 
Hr. A. W. Malm has published an account of the specimens 
preserved in Swedish collections (1869) : — Hvaldjur i Sveriges 
" Museer, ar 1869,^^ Sv. Ak. Handl. ix. no. 2, 1871, pp. 104, 
with 6 plates. He reviews the publications of his predecessors 
oh the same subject, and directs attention more particularly to 
the carpus and pelvis as means of distinguishing the various 
forms. These notes refer to the following species : — 
Balcma mysticetus, p. 32, figs. 1 & 2 (scapula and vertebra). 
Hunterius swedenhorgii, p. 34. 
Hunter ins glacialis, p. 36, fig. 3 (eighth rib). 
Megaptera longimana, p. 36, figs. 6 & 6 (ribs and vertebrae). 
Megaptera americana, p. 38, fig. 4 (fore limb and ribs), fig. 28 (carpus). 
JEschrichtius rdbustus, p. 39. 
Physalus mmculus, p. 40. 
Physalus antarcticus, p. 40, fig. 7 (occipital region and vertebra). 
Cuvierius carolince, p.42, fig. 8 (skull). 
Palcmoptera rostrata, p. 44, fig. 9 (maxillary), fig. 32 (carpus). 
Catodon macrocephalus, p. 46. 
Pontoporia tenuirostris, sp. n., p. 4Q,=P, blainvilUi, Flower, nec Gray, 
fig. 10 (entire animal and skull), fig. 34 (fore limb). 
Steno frontattis, p. 49. 
Bteno attenuatus, p. 61. 
Steno consimilis, sp. n., p. 62, fig. 63 (skull). 
DelpMnus longirostris, p. 63, fig. 11 (part of snout). 
JDelphinus delphis, p. 6<i, fig. 12 (part of snout). 
\ Delpidnus mgjor, p. 66, Hg. 13 (part of mandible). 
