A. E. VerriU — North American Cephalo j 
387 
changed in order to admit it into either of his groups. The existence 
of eight rows of suckers in 'Hlex' seems to he due merely to the crowd- 
ing together of the ordinary four rows ; nor can we attach much im- 
portance to the superficial furrows in the siphon-groove. T : 
my own opinion still is that I Hex and Todarod.es should be reunited, 
and should retain the name Ommastrephes , in a restricted sense. 
The absence of connective suckers and tubercles on the tentacular 
arms will be the most important diagnostic character to distinguish 
it from Sthenoteuthis and Architeuthis. 
In this paper, Professor Steenstrup gives figures (cuts) which, with 
the descriptive remarks, will, at last, enable others to identify his S. 
pteropus with more certainty. He has given liagramatic cuts of the 
base of the tentacular clubs, showing the arrangement of the con- 
nective suckers and tubercles of S. pteropus, S. Bartramii , gig as , 
S. p>elagicus, S. oualan iensis, and Fosidicus Eschrichtii [p. 11’. and 
cuts [p. 9], showing the siphonal grooves of St hen ote uth is pteropus, S. 
L . v ' tfrepht ittatus {=“ O. tod 
and 0. Coindetii (=“0. i tt tus ” auth.). On pp. 19 and 20 he 
has given a synoptical table of the several genera that he recognizes 
in this group, which he names, Ommatostephini — 
Gill, Tryon, Terrill). On plate 3. he figures "I Ilex Coindetii ," fe- 
male, with the gill-cavity opened, showing a large cluster of sperma- 
tophores attached to the inner surface of the mantle, behind the base 
of the gill, and a smaller one, in front of the gill. 
In the second article referred to, Professor Steenstrup discusses 
the genus Sthenoteathis versus “ Omrnotostrephes." He recognizes 
the identity of Sthenoteathis and his restricted genus Omrnato- 
strephes, as well as the priority of date of the former. He also refers 
to S. megaptera, as “ Omm a tost rephes meg opt era ." 1 
L ft h this— Chelot thi*= G at us Steenst. 
The second of Professor Steenstrup's papers coutains a detailed 
discussion of Gonatus Fabricii Steenst., with which he also unites 
Onychoteuthis Eamtschat ica Midi, the type-species of my genus 
Lestoteuthis (see p. 250). He may be correct in uniting these 
forms, for he states that he has received specimens that agree with 
Gonatus Fabricii , from the North Pacific.* Moreover, taking the 
characters of the genus Gonatus , as note understood, by Professor 
* The figures, however, show differences in the form e{ the pen and caudal fin. 
which, if correct, may stOl indicate specific differences. 
Tr\xs. Coxk. Acad., Yol V. 
46 
OCTOBKK. 18SI. 
