ONYCHOTEUTHIDiE. 33 



Body c^diuclrical, thin, rounded behind, with fins along nearly 

 the whole length ; arms with two rows of small hooks ; tentacles 

 thin, shorter than the sessile arms, with small suckers ; siphon 

 connected by bands. Shell feather-like. Too close to Enoplo- 

 teuthis. 



Octopodoteuthis has priorit}^, but is rejected as inappropriate 

 for a decapod. 



Plesioteuthis, Wagner, 1860. 



Distr. — 2 sp. Fossil, in the Solenhofen slate : liassic. P. 

 prisca, Wagner (xxviii, 66). 



Body rather long, attenuated behind; arms with hooks. Shell 

 small, lancet-form, with a central and two side ridges, and an 

 arrow-shaped point. Huxley supposed this genus to belong to 

 the Belemnitidse, but the giadius showed neither rostrum nor 

 phragmocone. 



DoRATEUTHis, Woodward, 1883. 



Type. — D. Sy^Haca, Woodward. Cretaceous, S^'ria. 



Arms furnished with suckers and probably also with minute 

 booklets ; the tentacular arms much longer than the sessile ones. 

 Pen nearly as long as the body, the shaft marked by three equi- 

 distant ridges, one median and two lateral, which converge 

 together at the very acute distal extremity ; there are lateral 

 expansions on each side, corresponding with lateral fins on the 

 body of the animal : the latter is also provided with a terminal 

 fin. 



The form of the pen as well as that of the animal indicates 

 resemblance to Ommatostrephes. 



Cel^no, Miinster, 1842. 



Distr. — 2 fossil sp. Liassic formation of Solenhofen. G. 

 conica, Wagner (xxviii, 61, 62). 



Body oval ; arms with hooks and suckers. Shell a rounded 

 blade, with winged projections on either side of the pen ; nucleus 

 central. 



DosiDicus, Sleenstrup, 1856. 



Distr. — The single, unfigured species, was at first believed to 

 have been taken at Marseilles, but it is more probably West 

 Indian. 



Body long ; arms with large pedunculated suckers on the lower 

 half, and many small ones on the upper, thinner half; clubs of 

 the tentacles with four or five hooks. Shell with a large, nearly 

 solid end-cone. 



Perhaps an abnormal specimen, with truncated and partially 

 reproduced arms. 



