Mr. A. Alcock on Calypterinus Allmani. 29 
is not the same as Hood Island. I presume a misunder- 
standing on the latter point was the cause of Mr. Sladen 
giving Galapagos Islands as the locality. M. Perrier states 
that the second specimen he saw in the British Museum was 
from an unknown locality ; however that may be, there is a 
specimen from Moreton Bay. So that the localities are not 
equatorial and eastern Pacific, but subtropical and western 
Pacific. 
V.—Natural History Notes from H.M. Indian Marine 
Survey Steamer ‘ Investigator,’ Commander C. F. Oldham, 
R.N., commanding.—Series II., No. 8. Note on Calypte- 
rinus Allmani. By A. Aucock, M.B.,C.M.Z.S., Officiating 
Superintendent of the Indian Museum. 
In their Report upon the ‘ Challenger’ Alcyonaria, Messrs. 
Perceval Wright and Studer describe * in the family Prim- 
noide a yemarkable new species, Calypterinus Allmani, from 
the vicinity of Fiji. The ‘ Challenger’ specimens are stated 
to have been fragments about 100 millim. long. 
We have recently on board the ‘ Investigator’ dredged 
several fine branches, one of them 200 millim. in length, of 
this Alcyonarian; and as it is such a beautiful and remark- 
able form I venture to offer a few observations, complementary 
of the original description, upon our specimens. 
The axis is branched in either one or two planes; when 
in two planes they are at right angles to one another, and 
the branching in one plane (the lateral) greatly predominates. 
The branches like the axis are quite rigid, and they ascend 
with a gentle curve parallel to one another to form a lofty 
compressed rigid umbel or candelabra: they have little 
tendency to give off secondary branches, but where such 
exist they arise singly low down near the origin of the pri- 
mary branch and ascend parallel with it in the same plane. 
No tertiary branches occur in any of our specimens. All the 
branches repeat the same gentle curve with the most remark- 
able uniformity. 
The polyps, as stated by Messrs. Wright and Studer, are 
disposed in whorls of from four to seven, and they hang head 
downwards, or downwards and outwards, they having evidently 
the power of flexion and extension upon the stem. 
* The Voyage of H.M.S. ‘Challenger,’ Zoology, vol. xxxi. pp. 53 and 
54, pl. xi. figs. 1, la, pl. xiv. fig. 5, pl. xx. fig. 2, 
