Miscellaneous. 135 



A. violaceus. Ch. violaceus, Quoy, Voy.Astrol. 73. f. 13, 16, 17, 20; 

 not Sow. III. f. 133. 



A. hastatus. Ch. hastatus, Sow. C.Ill. f. 127. 



A. hirundiniformis. Ch. hirundiniformis, Sow. C. III. f. 148. 



A. strigatus. Chitonellus latus, Guild. Z. Journ. v. 28. Chitonellus 

 strigatus, Sow. C. III. 



15. Chitonellus. Lam. 



Chitonella, Desk. Cryptoconchus, " Blainv.," Burrows. Crypto- 

 plax, Blainv. Chitoniscus, Herrm. 



Body elongate, compressed, convex above ; mantle covered with 

 crowded spines ; the exposed part of the front valves oblong, square, 

 broad, often worn ; of the hinder ones narrow, lanceolate ; the plates 

 of insertion large, produced in front, and scarcely notched on either 

 side. The gills occupy the hinder third of the sides. 



M. De Blainville inserts Lamarck's species of Chitonelli with the 

 spiny Chitons in section D., and in section E. he redescribes them, 

 from specimens in spirits in the British Museum. 



Chitonellus laevis, Lam. Chiton vermiformis, Blainv. D. S. N. 

 xxxvi. 553. Oscab. fascie, Quoy, Voy. Astrol. t. 73. f. 21, 29. 

 Cryptoconchus larvseformis, " Blainv.," Burrows, Elem. Conch. 190. 

 t. 28. f. 2, 4 1 Wood, Cat. 1. 1. f. 40. Philippines. 



Chitonellus striatus, Lam. ; Sow. Conch. Illust. f. 62 ? Oscab. 

 ocule, Quoy, Voy. Astrol. t. 73. f. 37, 38. Australia. 



The fossil Chitons of the older strata described by Munster, more 

 lately by Ryckholt, Bull. Acad. Brux. 1845, xii. 36. t. 1 — 4, appear 

 to belong to a peculiar genus, which may be called Gryphochiton, 

 most nearly allied to Chitonellus. 



I have described some peculiarities in the development, disposition 

 and structure of the valves of the Chitons in a paper which will be 

 read at the Royal Society on the 16th of June next. 



MISCELLANEOUS. 



Notice of the capture of Sylvia Turdoides (Meyer) in Britain. 

 By John Hancock, Esq. 



A male specimen of this fine Warbler was shot, three or four miles 

 west of Newcastle, near to the village of Swalwell, by Mr. Thomas 

 Robson of that place, on the 28th of last May. The attention of 

 this gentleman, who is perfectly familiar with the song of all our 

 summer visitants, was arrested by a note which he had not before 

 heard ; and after some search he succeeded in getting a sight of the 

 bird. It was concealed in the thickest part of a garden hedge close 

 to an extensive mill-dam, which is bordered with willows, reeds and 

 other aquatic plants. It would scarcely leave its retreat, and when 

 it did so never flew far, and always kept close to the herbage. Its 

 habits resembled those of the Reed Fauvette, being continually in 

 motion, occasionally hanging with the body downwards or clinging 

 to the branches and stretching forwards to take its prey. 



