244 Records of the Indian Museum. [VoL. XIT, 
3 mm. in length and 2°50 mm. in breadth. The nidamental glands 
measure nearly 1°50 mm.inlength. The olfactory papillae measure 
about 2 mm. in length and are situated at about 3 mm. below the 
posterior end of the eyes. The ventral arms have the margins 
mutilated in many parts so that only a few luminous organs are 
present, v7z.,9 on one arm and 3 on the other. The tentacles have 
lost their clubs. 
The example M ***° is much damaged but in spite of its muti- 
lated condition it has been easy to identify it with certainty from 
Chun’s magnificent illustrations. One of the tentacles possesses a 
club, and the stalks of its suckers are furnished with the wing-like 
membrane described by Chun (p. 247), and in other details the club 
suckers and those of the arms resemble completely Chun’s descrip- 
tion and figures. About fifty luminous organs are present on the 
fourth right arm and forty-six on the fourth left arm. Nothing 
resembling a hectocotylus appears on any of the arms. The eyes 
have the three longitudinal rows of luminous organs which Chun 
describes as “‘ sparkling like a chain of jewels.” ‘Twenty-two are 
present on one eye. The fins, siphon, and much of the ventral 
region have been torn away. 
The dorsal mantle-margin has the attachment exactly as in 
Chun’s illustration (pl. 39, fig. I). 
The tentacles are furnished at the base with membranes which 
are widest at the dorsal side. 
The dorsal mantle region is much darker in tone than the 
illustration of Chun (pl. 38, figs. I and 2), who, however, mentions 
(.c., p. 251) ‘* auch hebt sich bei einzelnen Exemplaren die Rticken- 
region im Bereiche des Gladius durch etwas intensivere Pigmen- 
tierung ab.” 
The specimen M **?* is also in very bad condition, and is ac- 
companied by the arms of another large specimen M **2*" anda 
loose tentacle which presumably belongs to one of them. The club 
of the latter measures 140 mm. Approximate measurements of 
the different specimens are given below :— 
Specimen number my ...M1250 Mi8s80 M8128 WM 81284 
mm. mm. mm. mm. 
Dorsal mantle-margin to commence- 
ment of fins .., speed ©) a 74 
Breadth of body at mantle- margin eee lS ea 45 
+ of head born Bi 45 ca.28 
f of fins ~ 2=-36 he 82 a 
Ist Ben? atmo “. Neen 5) 214 83 101 
PHOS Le ee ace soe eens Seema tl ateceum Ene 122 
Bed eis 35 ca a vata 203 128 140 
4th ie PER Oe) 200 202 
Length of tentacle me oor 1698 mutilated. mutilated. 
» 9 Club a 167 , 
Distribution.—o° 15’ N.. 98° 8 8’ E., trawl 614 m. ( Valdivia’ 
Exp.) Sagami Bay, Japan, from the collection of Haberer and Dof- 
lein (Chun, 1910). 


1 Mutilated, 
