228 Records of the Indian Museum. [Vou sere 
The specimen next in size (M *4°*) has the two largest tenta- 
cular suckers, of 3 mm. in diameter, with smooth rings and the 
remaining suckers of the club denticulate. All the other specimens 
show a number of large smooth rings on each club; specimen 
M **** for instance possesses ten smooth tings (some much larger 
than the others) on one club. As far as can be judged from the 
present material of a few male specimens, it would appear that the 
number of smooth rings on the club depends on the age of the 
specimen, and that in youth all the tentacular suckers are denti- 
culate. The shell of specimen M *3°° was examined and measures 
about 107 mm. by 37 mm., and has an index of 28. The wide 
flattened inner cone with an oval prominence in the centre is very 
like Goodrich’s figure. The chitinous margins measure in some 
parts as much as 8 mm. 
The spine (broken in the type) measures 4 mm. and curves 
slightly backwards. Hoyle (1905, p. 981) has referred a Sepia to 
S. rouxit, d’Orb. with some hesitation, adding that it possessed 
teeth on the rings of the large tentacular suckers, but that in 
certain respects it seemed to be intermediate between S. rouxii 
and S. singalensis. 
Some measurements of thespecimens are appended :— 

Specimen number _... .. M 4272 M 5285 M 8256 M S277 M 3282 
mm. mm. mm. mm. mm. 
End of body to dorsal mantle-margin 180 III 125 173 I51 
Breadth of mantle... ax 76 5S 55 70 08 
ya Sea in ue San 25 I5 Ty ca. 20 19 
Ist right arm nen ... mutilated. 44 50 68 52! 
Dig Gas = He Ree ae 69! 40 47 83 55 
Srelione sus ie of 59 48 45 go 05 
Age (iiec tiers ee 69 58 57 96 73 
Tentacle mA ee AI iit 106 148 51 
Club ard 33 27 26 30 30 
Distribution.—Ceylon and Gulf of Manaar (Goodrich and 
Hoyle}; Suez, Zanzibar (Hoyle). 
Sepia arabica, sp. n. 
(Plate xxiii, figs. 1-5; pl. xxiv, fig. 10.) 
M 415 ‘Investigator’ station 246: 15-x-1898, Laccadive Sea, 11° 14’ 
30" N., 74° 57/15” E., 68-148 fathoms—One 9. 
M 5122 ‘Investigator’ station 292 : 2-xi-1go1, Persian Gulf, 26° 20’ N. 
53° 54’ E., 53 fathoms—One 9. 
Body broad in proportion to length, fins narrow, dorsal 
mantle-margin not much produced in centre. Head broad and 
flattened. Eves large. Buccal membrane without suckers. Sperm 
pad not developed, perhaps owing to youth. Funnel with broad 
apex not reaching to fork between ventral arms. Umbrella well 
developed between the dorsal arms, lower laterally, and absent 
between the ventral pair. Fourth arms the longest, the rest 

! Less tip. 
