ON SOME OIGOPSID CUTTLE FISHES. 
77 
the new facts I have been able to make out will place the Chi- 
roteuthidae in a different relation to the remaining families 
of the Oigopsida, and will necessitate a slight change in the 
classification of this group, which I shall suggest at the close 
of this paper. 
I shall begin with the consideration of the type genus of 
the Chiroteuthidae, the species being the one named after 
Verany, and figured both by D’Orbigny (1) and by Verany. 1 
Chiroteuthis Veranyi (Ferussac), D’Orbigny. 
The specimen I examined was slightly smaller than the one 
of which Verany gives measurements in his description. It was 
purchased at Nice by Professor Lankester for the Museum of 
University College. The lengths of this specimen are as follows: 
Body without arms, but including (in 
11-2 
cm. 
Fin (length) 
3- 
>> 
„ (breadth) . 
3-5 
>> 
Breadth of body 
2- 
99 
1st arm .... 
9- 
99 
2nd „ . 
11-2 
99 
3rd „ . 
12- 
„ with a median (in. 
4th 
17-3 
„ with lateral external Cn. 
Tentacular arms 
8- 
99 
The order of the arms in descending order of the lengths is 
4, 3, 2, 1, which order is also given by Verany, though, owing 
probably to a printer’s error, the measurement for the third 
arm is given as the smallest. Each pair of arms is provided 
with two rows of suckers, which are well figured by D’Orbigny, 
the fourth pair of arms being, besides, provided with a row of 
deeply-pigmented warts, somewhat like those which occur all 
over the body of Iiistioteuthis, and are possibly phosphorescent 
organs. 
The tentacular arms are exceedingly long, and carry modified 
suckers at varying intervals along their whole length. The 
club has modified suckers, as figured by D’Orbigny, and is 
provided with two lateral-fluted webs (Shutzmembranen). 
1 Verany, ‘ Cephalopodes de la Mediterranee,’ 1851. 
