1916.] A. L. Massy: Cephalopoda of the Indian Museum. 197 
except for two ocular cirri. The Dublin Museum specimen is 
however, much tubercled, even on the ventral surface, where there 
is also a strong median groove, and in the centre of the posterior 
end of the mantle there is a slight projection surrounded by a ring 
of tubercles.' The specimen is of a pale purple-gray tint, but 
agrees with the example M *1°* in having the first four suckers 
placed singly on all the arms, and also in the width of the mantle- 
opening, the size of the funnel, and its distance from the umbrella- 
margin, as also in the size of umbrella and the conspicuous 
development of the white transparent portion of it between the 
ventral arms. ‘Tryon remarks that this species is certainly very 
near P. avanea, d’Orb., and I thought at first that the example 
M *+** would probably prove to be it, particularly as P. defilippr 
had not been observed outside the Mediterranean. On comparing 
“1>4 however, with the type of d’Orbigny in the Paris Museum, 
I found that the umbrella in P. avanea is lower ventrally than 
dorsally and does not appear to be continued on the arms, which 
are much slighter in proportion to the size of the body than in 
P. defilippi , the body also is quite round, but that, asin P. defilippr, 
may be due to contraction. P. avanea has a very smooth surface 
and a pale body with very minute round red-brown chromatophores. 
In the specimen M *1°* the chromatophores are minute, oblong 
and almost black. The principal measurements are appended :-— 
mm, 
End of body to mantle-margin __... oe eee 220 
Toy ao ee oan te saC abe 32 
Eye to umbrella a Ee Sins soo eS! 
Breadth of body sets cer ah Bee cers 
i ,, head ah me at a es IT 
Ist right arm “ Ar es is atOe 
intel sey tl Ye ro oS 7 Fone HUA 
SiO URS ee ey. aot ae 40 
ULE eyes Ea ah ee RaLS 7S 
We NSitt pe $e ie tf $4 8o 
Dinca ee ae he a nae Mac Gs 
Bio Raabe uae Te rae On 
ALN een ls 1382 
Hectocotvlus as 1°50 
Diameter of largest sucker ne Bae a0c 3 
Distribution.—Mediterranean. 
Polypus hongkongensis (Hoyle). 
(?) Octopus punctatus, Gabb, Proc. Calif. Acad. Nat. Sct., Il, p. 170 
(1862); Dall, Zb¢d., IL], p. 243, fig. 27 (1866) ; Verrill, ‘ Blake’, Suppl., 
p- 117, pls. 4, 5, fig. 2 (1883); Octopus hongkongensis, Hoyle, 
Diagnoses 1, p. 224; Prelim. Rep., 1, p. 99 (1885); Octopus punc- 
tatus, Hoyle, ‘ Challenger’ Rep., XV1 (Cephalopoda), p. 100, pl. 5 
(1886); Ortmann, Zool. Fahrb., II, p. 662 (1888); Joubin, Mém. 
Soc. Zool. France, X, p. 110, pl. g (1897); Bull. Soc. Zool. France. 

| This would appear to be an abnormality common to several species. It is 
noted by Hoyle (1886, p. 93) for Polypus pictus (Brock), and is figured by Joubin 
(1903, pl. 1, figs. 7 and 8) for P. fontanianus, d’Orb. 
2 [Less tip. 
