90 
P. ERNEST WEISS. 
pyriform groove at the base of the funnel with a corresponding 
ridge on the mantle (fig. 2). 
The siphon is provided with a modification of Verrill’s 
organ, but has also a valve relatively near its base and con- 
nected with the median portion of Yerr ill’s organ. There are 
also two large lateral cushions on the anterior wall of the 
siphon, as noticed in Doratopsis and Tracheloteuthis. Perhaps 
these structures are relatively large in these forms owing to 
their being all still very young, and they may perhaps dis- 
appear at a later stage, since they have not been described for 
the larger specimens examined by Verany, Brock, and others. 
The viscera of Verania showed no features worth special 
notice; I was unable to make out much owing to the smallness 
of the specimen. 
Measurements. 
Length of body 
1-4 
cm. 
„ fin 
'7 
55 
Breadth of fin 
1-4 
J» 
Length of mantle . 
'7 
it 
Arm 1 . 
-7 
if 
„ 2 . . . 
1-2 
if 
„ 3 . . . 
1 - 
it 
„ 4 . . . 
-6 
a 
Tentacular arms . 
-7 
a 
Concluding Remarks. 
It will be seen from the above investigation of several of the 
members of the Chiroteuthida?, that differing though they do on 
some points and especially in general appearance, we may justly 
unite them in a single family, though not on the grounds 
formerly given for their separation from the other Oigopsida, 
namely, the absence of siphonal valve, loss of accessory nidi- 
mental glands and of one of their oviducts. 
The concordance of Chiroteuthis with Doratopsis is very 
complete indeed, as regards, for example, the fastenings of 
mantle, the relative length of arms and tentacles, the projecting 
olfactory processes, &c. Their main difference is in the relative 
form of body and in some points of detail, as, for example, the 
