206 Records of the Indian Museum. [VOL. oir: 
Specimen number __... aye .. M2077 M 21978 
mm. mm. 
End of body to mantle-margin .., = 26 ai 
Breadth of body aa sr oa 20 22 
, head as ere a 15 14 
Eye to amibeene 1 See ae 1a) 20 23 
Length of funnel ve ai Bee 11 13 
Ist right arm oe wal ae 65 67 
PRICE oat 3 230 ae rr 64 75 
BEG aye gathy Rt 8 5 83 SI 
Athi, ane at 82 76 
Diameter of largest sucker Vas 1°75 r75 
Distribution.—Port Blair, darian Islands. 
Type.—In Indian Museum, Calcutta, a female. 
Polypus herdmani, Hoyle. 
Polypus herdmant, Hoyle, Rep. Pearl Oyster Fish. Gulf of Manaar, 
p. 187, pl. 1 (1904) ; Hoyle, Proc. Zool. Soc. London, p. 454 (1907). 
M £285 Pearl Banks, Ceylon (7. Southwell)—One 9. 
This has a round body with a median ventral groove ; mantle- 
opening placed a short distance below and behind the eyes, and 
extending a little less than half round the body ; arms stout and 
nearly four times the length of the mantle; suckers apparently 
ceasing at a short distance from the tip of each arm; umbrella 
extending about one-fourth of the length of the arms, continuing 
moderately on their outer margins, lowest dorsally and highest 
between the two ventral pairs ; siphon small, not passing the level 
of the eye, and reaching nearly half way to the edge of umbrella ; 
ocellar spots (each consisting of a dark oval patch surrounded by 
a narrow lighter coloured ring) placed about half way between the 
eye and the edge of umbrella; numerous elongated warts and 
tubercles placed chiefly round eyes and on dorsal surface of head and 
umbrella; inside of umbrella wrinkled but not tubercled. Colour 
greyish-brown, produced by minute brown chromatophores on a 
buff ground ; ventral surface paler and browner. It will be seen 
from the above notes that this specimen seems to differ from the 
description of the type only in having a somewhat smaller mantle- 
opening, and that the ocellar spots are placed a little nearer the 
umbrella. The latter difference may be accounted for by contrac- 
tion, many nuchal wrinkles being present. 
The principal measurements are appended :— 
mm. 
End of body to mantle-margin 3 Rf: Lor 8 
‘} SU Maeve wt oy. +h sei 
Kye to umbrella te a ee oe O 
Breadth of body sig we nat ss. 8 
,, head ie a at 9 
Ist right arm ees ane me 25! 
and ,, ; om ¥ ee mutilated. 
ayale Fe es at 1 ata 


| All the arms are much curled up, sothat measurements can only be regarded 
as approximate. 
