

196 MR. P. S. ABRAHAM ON THE [ Mar. 6, 
(EprruHINUS GLoBIFER, Cab. & Rehnw., U. c. p. 326. 
Ptilopus (Gdirhinus, noy. subgen.) globifer, Cab. & Rehnw. 
Sitzb. Ges. nat. Freunde zu Berlis vom 16. Mai 1876, p. 73. 
Have Dr. Cabanis and Reichenow compared the curious bird with 
Ptilopus insolitus, Schleg. Ned. Tijdschr. v. Dierk. i. p. 61, pl. mi. 
fig. 3? I suppose not, as otherwise they would not have failed to 
mention the great likeness which there appears to be between their 
bird and that of Schlegel. Péilopus insolitus also has the base of the 
upper mandible swollen into a round ball; the colours are very much 
the same as those of @. globifer, excepting that it has the smaller 
and also some of the greater and median wing-coverts and the last 
remiges, approaching the back, light grey. Schlegel had received 
his birds as from New Caledonia; but in the. Muséum des Pays-Bas, 
Columbe, p. 16, he has expressed his opinion that perhaps the type 
specimen of his Péilopus insolitus was nothing else than a monstrous 
specimen of Ptilopus humeralis jobiensis | 
It seems to me very probable that Gdirhinus globifer is identical 
with Ptilopus insolitus—a species which I shall have to add to the 
List of the Pigeons included in the second part of my ‘‘ Prodromus 
Ornithologie Papuane et Moluccarum” (Ann. Mus. Civ. Gen. ix. 
pp. 194-208). 
8. Revision of the Authobranchiate Nudibranchiate Mollusca, 
with Descriptions or Notices of forty-one hitherto un- 
described Species. By Puinzeas S. Apranam, M.A., 
B:Sc., F.R.M.S., F.Z.S. 
[Received February 20, 1877.] 
(Plates XX VII.-XXX.) 
Before the time of Cuvier but comparatively little attention had 
been paid to the naked-gilled Mollusca. Linneeus, in the earlier 
editions of his ‘Systema Nature,’ alludes to Tethys, as a genus of 
the order Zoophyta; in his 10th edition, 1758, the genera Doris 
(with one species) and Scyllea first appear, and together with Tethys 
are included in the 4th order Molusca, of his 6th class, Vermes. He 
also diagnoses what we now believe to be Holis papillosa, under the 
generic name Limax. In the 12th edition four species of Doris are 
scantily characterized, viz. D. verrucosa, D. bilamellata, D. levis, 
and D. argv. The second and fourth have been identified; but of 
the remaining two we are not certain: D. verrucosa may be D. 
verrucosa of Cuvier; and D. levis may be D. repanda of Alder and 
Hancock. Linneus at first considered that the cireumanal branchiz 
of Doris were oral tentacula ; he rectified his mistake, however, in 
his 12th edition, after the proper homologies of the parts had been 
pointed out by Bohadsch in 1761. In the ‘ Fauna Greenlandica,’ 
published by Otto Fabricius in 1780, the foot of a Doris is described 

