Miscellaneous. 309 



five fathoms piercing, and partially imbedded in, the Avicula mar- 

 garitiferd) ; Cuming. 



This peculiarly shaped shell exhibits the same kind of delicate 

 marginal frill of laminae as the well-known Cypricardia corallio- 

 phaga, and belongs to a mollusk of the same terebrating habits. The 

 shells of terebrating mollusks vary so exceedingly in form, accord- 

 ing to circumstances of situation, &c, that were the C. laminata not 

 entirely destitute of the fine radiating striae which characterise the 

 C. coralliophaga, it might be regarded as a modification of that 

 species. 



Cypricardia obes a. Cypr. testd subquadrato-ovatd, valde gibbosd, 

 tumidd, latere postico suboblique angulato ; longitudinaliter stri- 

 atd, striis profundi i?icisis ; lutescente-albd. 



Conch. Icon., Cypricardia, pi. 2. f. 10. 



Cypricardia Solenoides. Cypr. testd angustatd, Solcniformi, 

 latere postico plano-angulalo ; albd, postice purpureo-fusco obso- 

 lete radiatd ; umbonibus purpureo-fuscis ; intus albd, ad extremi- 

 tatem posticam purpureo-violaceo tinctd. 



Conch. Icon., Cypricardia, pi. 2. f. 11. 



Hob. Calbayog, island of Samar, Philippines (found piercing soft 

 slaty rocks ; low water) ; Cuming. 



The Cypricardia Solenoides, though approximating greatly in form 

 to the Cypricardia coralliophaga, differs materially in structure and 

 composition ; the two species indeed exhibit all the differences upon 

 which De Blainville founded his genus Coralliophaga. Instead of 

 presenting that pellucid tenuity which seems peculiar to the tere- 

 brating species, it is of the same solid opake structure as the Cypri- 

 cardia vellicata, the umbones have the same purplish-brown patch 

 upon them, and there is an evident indication of the same posterior 

 streaks of that colour. 



MISCELLANEOUS. 



CIRSIUM SETOSUM, M. BIEB. 



This plant has recently been found by Dr. Dewar of Dunfermline 

 on the shore of the Firth of Forth near Culross, in considerable 

 quantity. It has probably been introduced from Odessa with mer- 

 chandise, but is now quite established in Scotland. It is very satis- 

 factory to me to learn that Sir W. Hooker, who possesses authentic 

 specimens of M. Bieberstein's plant, has come to the same conclusion 

 which I had done concerning the identity of the plant gathered by 

 Dr. Dewar and that described in the ' Flora Tauro-Caucasica.' — 

 C.C.B. 



ALSINE STRICTA, WAHL. 



A few weeks since, my friend Mr. Jas. Backhouse, jun. of York 

 kindly sent me a specimen of A. stricta, which had been just dis- 

 covered on Widdy Bank Fell, on the Durham side of the upper part of 

 Teesdale, by a party of botanists, consisting of Messrs. John Tatham, 

 jun. of Settle, G. S. Gibson of Saffron Walden, S. Thompson, and 

 Jas. Backhouse, sen. and jun. of York. Growing in so utterly wild 



