Mr W. E. Hoyle on Loligopsis and some other Genera. 315 



1822. Loligopsis Pcronii, Laiuaick, Aniiii. s. Vert., t. vii,, p. 660. 

 Blainv., Journ. de Phys., t. xcvi., p. 124. 

 d'Orb., Ceph. Acet., p. 323 ; Moll, viv., p. 372. 

 Steenstrup, Overblik, p. 85 (17). 

 (pars), Tryou, Man. Conch., p. 164. 

 Verrill, Cepli. N. E. Amer., p. 125. 

 Rochebr., Monogr. Loligopsidse, ^. 16 (8). 



As above mentioned this is the type of the genus, and 

 although de Blainville {loc. cit.) has supplied a few details 

 (triangular shape of the fins separately, gelatinous translucent 

 opaline appearance of body) not given by Lamarck, it seems 

 quite possible that the species, if again discovered, will not 

 be recognised ; and it seems, therefore, that the best course 

 would be to allow this species to remain as a doubtful 

 quantity for naturalists to pursue, but with which nothing 

 can be done at present. This course is suggested by Pro- 

 fessor Verrill {loc. cit), and it was also that adopted more 

 than twenty years ago by Professor Steenstrup, our greatest 

 living authority on the Cephalopoda.^ 



Taonius, Steenstrup, 1861. 



Loligopsis (pars), d'Orbigny, Try on, de Rochebr une, etc. 

 Desmoteuthis, Verrill. 

 Procalistes, Lankester. 

 Phasinatopsis, de Rochebrune. 



The genus Taonius was established by Steenstrup in 1861 

 to include Loligo pavo, Lesueur, and a new species from 

 Greenland, which he called Taonius hyperhoreus. So far as I 

 am aware no diagnosis of this genus has ever appeared in the 

 English language, and I shall therefore commence by trans- 

 lating Steenstrup's original description. 



In the first place, the whole family Cranchiseformes is 

 characterised thus : " The mantle is firmly united with the 

 head at three separate points — namely, directly in the dorsal 

 median line, and indirectly by means of the funnel on either 

 side of it, where there is usually a movable sliding cartila- 

 ginous articulation or hook in other Cephalopoda." ^ 



Then, under the heading Taonius hyperhoreus, he adds : 

 1 Overblik, p. 85 (17). 2 /j^-^_^ p 70 (2). 



