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3. On THE SYNONYMS OF JOHNSTONELLA CATHARINA, GOSSE. 
By J. E. Gray, Pu.D., F.R.S., V.P.Z.S. 
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. 736. t. 5. f.5, under the name of Tomopteris onisciformis 
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 Bria- 
rea Scolopendra from the coast of Spain. Hermannsen has pro- 
posed to change the latter name to Briarea: Harry Goodsir calls it 
Briareus: and Mr. R. Ball writes it Bryarea. Eschscholtz and Quoy 
and Gaimard regard it as a mollusk ; the former author 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 extre- 
mity of its body,” decided that it could not be a mollusk. 
Menke (Zeitsch. fiir Malac. 1844, 21) proposes to remove the genus 
to the Annelides; more recent authors have considered it as a Crus- 
tacean. 
Mr. Gosse at first sight thought it might be a Branchiopod Crus- 
tacean, but thinks it has more affinity to the Annelides (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 Mediterra- 
nean: thus, Tomopteris onisciformis and T. Scolopendra are most 
probably distinct species. Mr. Gosse’s Johnstonella 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). 
The genus Johnstonella of Gosse, is therefore synonymous with 
Tomopterus, Eschsch. Isis, 1825. 
Tomopteris, Menke, 1844. 
Briarea, Quoy & Gaim. 1829. 
Briarea, Herm. 
Briareus, Goodsir, Ann. & Mag. Nat. Hist. 1845. 
4. Descriptions oF New Species oF SEMELE, RHIZOCHILUS, 
PLotiA AND TIARA IN THE CUMINGIAN COLLECTION. 
By Artuur Apams, F.L.S., evc., ETC. 
1. Semete Jovis, A. Adams. S. testa ovato-oblonga, subventri- 
cosa, rosea, umbonibus rubris, albo radiatis, concentrice lamellata, 
lamellis striatis, equalibus, equidistantibus, interstitiis longitudina- 
liter striatis ; latere antico longiore, rotundato, postico breviore, 
flexuoso, subtruncato ; intus rosea. 
Hab. ? Mus. Cuming. 
