490 Miscellaneous. 



which, after having lost the tip, or even the distal half of one or 

 more of the sessile arms, have more or less completely reproduced 

 the lost parts. In such cases the restored portion is often more 

 slender and has smaller suckers than the normal arms ; and where 

 the old part joins the new there is often an abrupt change in size. 

 Probably this difference would whoUy disappear after a longer 

 time. 



An unquestionable and most remarkable example of the repro- 

 duction of several entire arms occurs in a small specimen taken off 

 Newport, R. I., Aug. 1880. This has the mantle 70 millim. long, 

 dorsal arms 22 millim., third pair of arms 30 millim. The three 

 upper pairs of arms are perfectly normal ; but both the tentacular 

 and both the ventral arms have evidently been entirely lost and then 

 reproduced from the very base. These four arms are now nearly 

 perfect in form, but are scarcely half their normal size on the left 

 side, and still smaller on the right side. The left tentacular arm is 

 only 24 millim. long, and very slender, but it has the normal pro- 

 portion of club, and the suckers, though well formed, are diminutive, 

 and those of the two median rows are scarcely larger than the lateral 

 ones and delicately denticulated. The right tentacular arm is less 

 than half as long (12 millim.), being of about the same length as 

 the restored ventral one of the same side ; it is also very slender, 

 and its suckers very minute and soft, in four equal rows. The right 

 ventral arm is only 14 millim. long, the left one 15 millim. long ; 

 both are provided with very small but otherwise normal suckers. 



In another specimen from Vineyard Sound, a female, with the 

 mantle about 150 millim. long, one of the tentacular arms had lost 

 its club ; but the wound had healed, and a new club was in process 

 of formation. This new club is represented by a small tapering 

 acute process, starting out obliquely from the stump and having a 

 sigmoid curvature ; its inner surface is covered with very minute 

 suckers. The other arms are normal. 



It seems probable that some of the normal European species of 

 Loligo that have been based on the smaller size of the tentacular 

 arms or of the suckers are due to similar instances of regeneration 

 of these parts. — Amer. Journ. Sci., April 1881. 



Note on Wardichthys cyclosoma, Traq. By Thomas Stock, Natural - 

 History Department, Museum of Science and Art, Edinburgh *. 



A small fish was described and figured by Dr. R. H. Traquair 

 in the ' Annals ' for April 1875, vol. xv. p. 262, pi. xvi. figs. 1-5, 

 in a paper entitled " On some Fossil Fishes from the Neigh- 

 bourhood of Edinburgh." The description was drawn up from 

 a single specimen obtained by him from the Wardie Shales about 

 fifteen years previously. A new genus was established for its 

 reception under the name of Wardichthys, so called in honour 

 of Mr. John Ward, F.G.S., of Longton, Staffordshire, a well- 



* Read before the Edinburgh Geological Society, April 1881. 



