TYPE SHELLS FllOlVr THE CANABIES. 519 



This species is not enumerated by D'Orb. ; and Mr. Edgar 

 Smith, of the British Museum, wlio has kindly examined for me 

 some of D'Orbigny's types deposited in the Britisli Museum, in- 

 forms me that D. olearium is not in the list, nor among the shells 

 themselves. The specimen sent by Webb is a young shell of Z>. 

 (jalea, Linn. D. olearium is not found in Madeira. 



" 10. Dolkcm perdix, Lamk." 



Webb's type specimen thus named is the young of Cassis un- 

 dulata, Linn., a species whicli D'Orb. has given under the name 

 of G. sulcosa, Lam. He publishes Dolium perdix, Lam., as found 

 in the Canaries ; and Mr. E. Smith assures me that the type 

 specimen deposited by D'Orbigny in the British Museum is 

 really of this species. It is not found in Madeira. 



" 11. Valuta Neptuni, Lam. Capital ! " 



D'Orbigny publishes this species under this name as Canarian. 

 In the " List of Shells observed at Mogador," already referred 

 to, Mr. Lowe says that this is the Valuta alia, Linn, (that name, 

 of course, having priority over that of Neptuni of Lamarck) ; and 

 enumerating various places for its habitat, he adds, in inverted 

 commas, " Lanzarote (i. e. opposite coast of Africa), Webb ;" 

 and continues, "D'Orbigny's typical Canarian specimen of his 

 V. Neptuni in the British Museum is certainly nothing (as before 

 affirmed) but a wretched bleached and battered shell of V. ruli- 

 ginosa, Sw. Tet I possess a small mottled young example of the 

 true V. Neptuni, Gm. (=F. navicula, G-m.), 2 inches long by 1 

 inch and 5 lines broad, sent me by Webb in 1829 from Lanzarotte, 

 which, though doubtless of African origin, suffices to forbid the 

 quotation of V. Neptuni, D'Orb., in W. B. ii. 2. 85, together 

 with his V. porcina, under Gymhium ruliginosum, Sw., var. /3, with 

 which, however, the existing types of both his species in the 

 British Museum are all equally identical. Eor this, his record of 

 the species as a Canarian (Lanzarotan) shell, though unsupported 

 by the type in his collection, doubtless rests on the authority of a 

 MS. list by myself, with notes or descriptions of all the Canarian 

 shells received by me from Webb, drawn up for, and communi- 

 cated many years ago (in 1833) to my late friend, of which 

 D'Orbigny has, without acknowledgment, made unsparing use, 

 borrowing most of the new specific names, and arbitrarily chan- 

 ging others, without reference [Note— except in two instances — 

 Planaxis iccvigata, p. 79, and BaneJIa abhreviata, p. 91. The 



