508 MR. O. SALVIN ON THE AVIFAUNA 
antico carneis; harum dimidio postico et rostro nigris: long. tota 16-0, ale 12, caude 
5-5, tarsi 1°5, rostri a rictu 1°65. 
Obs. G. hesitate affinis, sed tectricibus supracaudalibus dorso concoloribus nec albis 
distinguenda. 
There are two specimens of this species in the British Museum, both obtained by 
Captain Kellett and Lieut. Wood in the Galapagos, one of them being labelled as 
coming from Chatham Island. These skins differ from a mounted specimen of 
(£. hesitata in the British Museum, from Haiti, in having the upper tail-coverts of the 
same colour as the back, and in the dark colour of the crown being connected with that 
of the back by the feathers of the hind neck being tipped with the same dark colour. 
There is no other species to which, so far as I am aware, this bird is at all nearly allied. 
I have little doubt but this Petrel is the small ‘‘ Albatross” spoken of by some of the 
early visitors to these islands. 
Genus SPHENISCUS. 
The Penguins are restricted in their range to the southern hemisphere. The peculiar 
species of the Galapagos has probably the most northern habitat of any member of the 
family. Its nearest ally is S. magellanicus, from the Straits of Magellan and the 
Falkland Islands. 
SPHENISCUS MENDICULUS. (Plate LXX XIX.) 
Spheniscus mendiculus, Sundey. P. Z. S. 1871, pp. 126, 129. 
Niger, subtus albus: capitis latera cum gula nigro-fusca, mento albo: linea super- 
ciliaris angusta, alba, a macula lori majore incepta, aurem cingens, in jugulo supremo 
cum pari conjuncta: cervix et colli latera nigricantia: color nigricans jugulum ambit 
ibique torquem format albedinem juguli in fascias duas separantem: linea infra lateralis 
nigra ut in S. demerso linea laterali interjecta alba a nigridine dorsali separata et in 
jugulo medio cum pari arcuatim conjuncta: ala subtus nigra cum vitta longitudinali 
minus definita, albida, in carpo abbreviata: rostrum nigrum, maxilla inferiore lutea (vel 
aurantia) apice ante nares nigra, limite definito: pedes (sicci) fusci (Sundevall): long. 
tota 17°5, ale (humero excluso) 4°5, tarsi 1°4, dig. med. cum ung. 2°4, rostri a rictu 2°6. 
Hab. James Island (Sundevall). 
The above description is the original one given by Professor Sundevall in the ‘ Pro- 
ceedings’ for 1871. He there compares the species to S. demersus of South Africa; 
but its relationship, so far as is indicated by the distribution and number of the dark and 
white bands on the neck are concerned, show that it has greater affinity with S. magel- 
lanicus of the Straits of Magellan and the Falkland Islands, where these marks, in a 
more decided form, are quite similarly distributed, except that in the Galapagos bird 
the chin is white. From S. magellanicus S. mendiculus differs in its longer and more 
slender bill, three fourths of the base of which is yellow instead of black, and in its 
