1g16.] A. 1. Massy: Cephalopoda of the Indian Museum. 225 
Sepia singaporensis, Pfeffer. 
Sepia singaporensis, Pfeffer, Abh. Naturw. Ver. Hamburg, VIII, pp. 
10-11, figs. 13, 13a (1884); Hoyle, Proc. Roy. Phys. Soc. Edin - 
burgh, p. 27 (1886) ; Goodrich, Trans. Linn. Soc., VII, p. 3 (1896). 
M £15 ‘ Investigator’ station 387 : 16-xi-1909, off C. Negrais, Burma, 
15° 25’ N., 93° 45’ E., 40-49 fathoms—One ¢. 
This has lost the tentacles but in ali other respects seems to 
agree closely with Pfeffer’s description. Fourteen to thirty-three 
teeth were counted on different arm sucker rings. 
On the fourth left arm about six rows of suckers on the 
proximal half are appreciably smaller than those immediately 
preceding and following them, the two dorsal suckers in each row 
being the smallest; the surface of this modified portion appears 
to be slightly excavated. 
Hoyle (1886, p. 128) thinks that it is quite possible that 
this species may be identical with S. plangon, Gray. ‘The shell of 
specimen M **%° measures 63 mm. by 18 mm., and has an index 
of 31. The end of the spine is broken but the portion remaining 
does not show the keel on the ventral edge present in the shell of 
S. plangon. 
The principal measurements are appended :— 
mm. 
Dorsal mantle-length ace ae ee 
Breadth of body ie rf ce eo 
,, head ay vie tie ee ape 
Fin maximum ~~ mee ha Soe lin oh 
Ist right arm ca - Tes: 25 
BMG gece yy hd ... mutilated. 
3rd 28 
7G Oe is ea ~ aS nich ie Pea 
iSteelett ee 2 ey 26 
DiGi eee - a ... mutilated. 
DiGle roe reer he see e224! 
AlN cosas ra 25 
Distribution.—Singapore (Pfeffer and Goodrich). 
Tyvpe.—In Hamburg Museum. 
Sepia esculenta, Hoyle. 
Sepia esculenta, Hoyle, Diagnoses, II, p. 188; Prelim. Rep., Il, p. 291 
(1885) ; ‘Challenger’ Rep., XVI (Cephalopoda), pp. 129-31, pl. 17, figs. 
1-5; pl. 18, figs. 1-6 (1886); Appelléf, K. Svensk. Vetensk. Akad. 
Hlandl., XXI, p. 28, pl. 3, figs. 1-6, 24 (1886) ; Ortmann, Zool. Fahrb., 
III, pp. 649-665 (1888) ; Pilsbry, Nautilus., VII, p. 144 (1894) ; 
- Joubin, Bull. Soc. Zool. France, XXII, pp. 102-103 (1897); Hedley, 
Proc. Linn. Soc. N.S. W., XXXI, p. 463 (1906); Berry, Proc. Acad. 
Nat. Sct. Phil., pp. 418-19 (1912a). 
M 8286 Moji, Japan, 1-vii-1913 (F. D. Cooper)—One ¢. 
Owing to its large size this specimen was not taken to be 
compared with the type. A vivid recollection of its appearance, 
and a subsequent glance at the type male in the British Museum 
has, however, quite satisfied me that it is rightly referred here. 
