DAPTION CAPENSIS. 767 
seas.” We obtained a single specimen of it off the Cape in 1856, 
while cruising in H.M. Frigate “ Castor,” with Admiral Trotter. 
The whole plumage intermediate between brownish-red and liver- 
brown ; several of the scapulars and interscapulars narrowly tipped 
with yellowish-brown; the feathers of the head, neck, and body, 
silvery-white towards their base, with a satin lustre; bill, rich black; 
tarsi, toes, and interdigital membrane, liver-brown, the two first 
tinted lake-red. Length, 17’; wing, 13” 9’; tail, 6”. 
Fig. Smith, Ill. Zool. 8. Afr. Aves, pl. 52. 
745. THALASS@CA TENUIROSTRIS (Audub.). Smith’s Grey Petrel. 
Procellaria glacialoides, Layard, B. 8. Afr. p. 361. 
The type of P. glacialoides was obtained in the Cape seas by Sir 
Andrew Smith. 
Aboye, cinereous ; below, white; head and back of neck white, 
tinged with cinereous yellow; the coverts of the primaries and 
secondaries, outwardly ruddy brown, with the two last white; tail, 
pale cinereous ; the sides of the body tinged with bluish-grey ; bill 
above, purplish-blue; below, livid flesh-colour; top of mandible, 
livid black ; feet, livid grey; Length, 18” 9’’; wing, 12" 4’; 
tails oo 
Fig. Smith, Ill. 8. Afr. Aves, pl. 57. 
746, Daprion capensis (I.). Cape Petrel. 
Procellaria capensis, Layard, B. 8. Afr. p. 361. 
This bird, though common enough along the coast, rarely enters 
our harbours, preferring the open sea for its hunting-field. At one 
season of the year, about November and December, they disappear, 
and the voyager finds the sea duller and tamer than ever. We 
presume that they go off to breed; but where they select their 
nurseries we know not. 
On a recent voyage to England, we left the Cape at the end of 
March: not a single Daption was visible throughout our trip; nor 
indeed, after we left the land, until off Ushant, did we see more 
than half-a-dozen birds in all (1866). On our return in November, 
we fell in with one three degrees north of the Line!! We have 
never before heard of this species extending beyond the Equator. 
Mr. Rickard states that three or four were seen, and one procured on 
the 12th of September, 1861, near Port Elizabeth ; the only occasion 
