SOFT-PLUMAGED PETREL. 
Digitus interior longitudine tibiae. Ungues atri, parvi, tenues, parum incurvi. Unguis 
brevissimus, ater, conicus, sessilis, loco digiti postioi. Pileus, genae, collum, dorsum, 
uropygium ; alae et rectrices nigro-cinerea. Abdomen cinereum, pennis albis apice cinereis. 
Gula, iugulum, pectus Candida, Crissum album, fasciis raris fuscis undulatum, Alae 
longissimae. Remiges primores 10, extima longissima, reliquis sensim minoribus ; secun- 
dariae 18, lamina exteriore et apice nigro -cinereis, interiore albis, Alae subtus albae, fascia 
fusca obliqua, ab alula ad angulum posticum cubiti, Cauda mediocris, rotundata, 
Rectrices 12 totae cinereae, rachi brunnea, intermediae binae paulo longiores, laterales 
sensim breviores, 
Mbnsueae. 
Ab apice rostri in extremitaten caudae 
,, „ „ unguis digiti medii 
Alae expansae , , 
Rostrum ab apice ad basin in fronte 
Dibiae ., .« .. ,« ,, «« ». 
Digitus medius absque ungue 
Unguis medius 
This name was rejected in the Monogm'ph of the Petrels in favour of the later 
P. gularis Peale {U.S. Expl. Exp., Zool., p. 299, 1848, c/. 2nd ed., p. 410 ) : — 
Procellaria gularis. Color above cinereous-brown ; tail and breast plumbeous ; 
throat, under wingcoverts, and under tailcoverts white ; primaries and spurious wings 
nearly black, with brown shafts ; tail light beneath ; the two outer feathers mottled with 
white ; aU the shafts brown above, and white beneath ; the whole plumage white at the 
roots ; bill blue-black, much curved, very sharp-pointed, and much compressed near the 
tip ; first quiU longest. Total length thirteen inches ; extent of wings thirty-four inches ; 
wing, from the carpal joint, ten and a half inches ; bill one inch ; nasal tubes three-fifths 
of an inch ; tarsi one and one-fifth inches ; outer toe one and six-tenths inches ; tail 
three and four-tenths inches ; outer feathers two and seven-tenths inches, Male, 
Latitude 68° S,, longitude 95° W. of Greenwich. 
The localities of all three agree quite closely, the second specimen of 
P. lugens included by Solander being killed in almost the same longitude. 
If only collections of Petrels were available from these South Pacific seas, 
very valuable conclusions could be formed regarding the wandering habits of 
members of the genus Pterodroma. 
Solander described three other species of Petrels from these seas ; 
his diagnoses I here reproduce : — 
velificans Procellaria supra cinereo -nigricans, tota subtus nivea, cauda cuneata nigricante, pedibus 
albis ; palma nigra basi alba 
Habitat in Oceano australi (Pacifico) Lat. austr. XLIV 35 Longit. occ, a Lond. CIX 2 
(Pebr, 23, 1769) Lat, austr, XXXVI 49 Longit. occ. CXI 30 (Martii 3, 1769) 
Forte varietas Procellaria crepidata Mscr,, a qua tamen differt alis subtus hlveis & 
cauda nigricante, pedibus autem convenit. Palma enim tantum modo inter 
articulos baseos alba 
Caput supra & latera, Collum supeme et prope humera etjam latere. Dorsum & 
Uropygium e nigricanti-cinerea 
Ala' longa', angusta', supra nigricantes, subtus nivea', exceptis apicibus remigum 
cinerascentibus, et angulo carpi nigricante 
13 unc. 
12i „ 
30 „ 
IJ- 
■^10 M 
Vu ,, 
_8 
lU 
VOL. II. 
161 
