150 Miscellaneous. 



JOHNSTONELLA CATHARINA, GOSSE. THE CRYSTALLINE 

 JOHNSTONELLA. 



Mr. Gosse, in his amusing and interesting work on the coast of 

 Devonshire, describes as new to science an animal under the above 

 name. I am sorry, — as I should much wish for the above name to 

 have been permanent, — to have to observe that it appears to belong 

 to the same genus as the animal described by Eschscholtz in the 

 ' Isis ' (1825), p. 73G. t. 5. f. 5, under the name of Tomopteris onisci- 

 forniis from the South Seas ; and by MM. Quoy and Gaimard in 

 the ' Voyage of the Astrolabe,' ii. p. 284. t. 21. f. 21, 24, under the 

 name of Briarcea Scolopendra from the coast of Spain. Hermannsen 

 has proposed to change the latter name to Briarcsa : Harry Goodsir 

 calls it Briareus : and Mr. R. Ball writes it Bryarea. Eschscholtz 

 and Quoy and Gaimard regard it as a mollusk ; the first referring it 

 to the order Heteropoda, and the latter to the Nudibranchiata. 



Mr. Harry Goodsir, who found the animal abundant in the North 

 Sea (Ann. and Mag. Nat. Hist. 1845, xvi. 163), observing the pre- 

 sence of " cilia fringing the bifurcated posteriors of the lateral ex- 

 tremity of its body," decided that it could not be a mollusk. 



Menke (Zeitsch. fiir Malac. 1844, 21) proposes to remove the ge- 

 nus to the Annelides ; more recent authors have considered it as a 

 Crustacean. 



Mr. Gosse at first sight thought it might be a Brachiopod Crus- 

 tacean, but thinks it has more affinity to the AnneUdes (p. 348), and 

 refers it to that class in the Systematic Index. 



According to Eschscholtz and Quoy and Gaimard, the South Sea 

 specimens are very much smaller than those found in the Mediter- 

 ranean : thus, Tomopteris onisciformis and T. Scolopendra are most 

 probably distinct species. Mr. Gosse' sJohnstonella Catharina is, no 

 doubt, a synonym of the latter, since Mr. R. Ball records that Brya- 

 rea Scolopendra has been taken in Dublin Bay by Dr. Corrigan 

 (Proc. Brit. Assoc. 1849, p. 72).— John Edw. Gray. 



July 14, 1853. 



On a new genus o/" Anomiadae. By J. E. Gray, F.R.S. &c. 

 Tedinia. 

 Shell irregular, loosely lamellar ; upper or right valve with a broad 

 cardinal groove, and with three muscular scars, the upper small, ob- 

 long near the cartilage, the other two large, subcentral, upper sub- 

 trigonal, lower oblong, transverse, united by a nearly straight medial 

 cross line ; left or attached valve with an elongated, triangular, con- 

 vex cardinal ridge, with a deep groove on each side, having the car- 

 tilage on its inner edge, with two muscular scars, one small, half ob- 

 long near the cardinal ridge, the other large, subcentral, subcircular, 

 and with a roundish circular hole near the upper edge, with a slight 

 impression showing the grooves to the margin some distance from 

 the cardinal ridge ; the plug shelly, fixed into and exactly fitting the 

 hole, with a triangular base sunk into the surface, commencing from 

 the apex of the shell on the outer surface, and formed of erect shelly 

 longitudinal plates within. 



