Mr W. E. Hoijlc on Loligopsis and some other Genera. 325 



Brock bears out this statement, and says that it was only 

 on repeated examination, and by feeling rather than by sight, 

 that he discovered their existence in his two specimens.^ 



Professor Steenstrup's remarks on the tentacle stumps may 

 also be translated. Speaking of L. ellipsoptera, he says — 

 " When it is borne in mind that all the specimens of the 

 nearly related L. cyclura have had precisely similar stumps, 

 and, in so far as they have been examined with respect to 

 this point, exactly of the same length as in these individuals, 

 and also that two specimens in the Paris museum show 

 the same arrangement, one is driven to the conclusion that 

 the mutilation of the tentacles is not merely due to accident, 

 especially as a large number of the specimens under con- 

 sideration were taken alive. If these forms really at one 

 time possessed the long tentacles of their family, then at 

 least it must be assumed that they have some organic 

 peculiarity which causes them to be easily broken off, and 

 always at one and the same point. At all events, the basal 

 remnants do not indicate that the tentacles were of extreme 

 thinness." 



In the present state of our knowledge the following may 

 be given as a description of the genus Leachia : — 



Body elongated, semi-transparent, head small, eyes prominent. 

 Mantle united with the hack of the head hy a firm hand, which 

 vndens posteriorly, and by a band at each side of the base of the 

 siphon. A row of cartilaginous papillce down the ventral 

 surface of the mantle on each side. Fins terminal, forming 

 together a broad oval or a circle. Arms short compared, with 

 the body, with two rows of suckers. Tentacles rudimentary, 

 their stumps being situated in the usual place. Gladius long, 

 slender, and somevjhat dilated in front and posteriorly, conical 

 and hollow behind. 



Professor Steenstrup ^ suggests that Anisoctus, Eafinesque, 

 may be a synonym of Leachia, and the brief definition given 

 by the author is not inconsistent with such a supposition, 

 but without the figures which are alluded to in the descrip- 

 tion, no certainty is possible. 



1 Gottingen Nachrichten, p. 507, 1884. 



2 Ommatostrephagtige Blseksprutter, p. 104 (34). 



