TYPE SHELLS PROM THE CANAEIE3. 521 



" 16. Conus guinaicus, I believe, but sadly worn. More." 

 This is not among the shells sent to me by Mr. Wollaston. 

 The species is given by D'Orbigny as Canariau, under this 

 name. 



" 17 I can find nowrhere, and the next had dropped out of the 

 box before it was opened, but was luckily picked up. Do send 

 it me. I dare say it was a N. S. ! ! ! " 



" 18. Planaxis Icevigata, nob. Quite new to me, and I believe 

 unpublished. More if you can. There is only one." 



In regard to this, D'Orbigny says, " No. 94. Lors de leur 

 sejour aux Canaries MM. Webb et Berthelot envoy erent une 

 collection de coquilles marines a M. Lowe, qui, en leur adressant 

 la determination, a signale une espece nouvelle de Planaxe qu'il 

 nomme Planaxis Icevigata. Comme la plupart des especes en- 

 voyees par MM. Webb et Berthelot etaient uniques, ou qu'au 

 moins ils ne les ont pas toutes rapportees, celle-ci se trouve de ce 

 nombre et nous ne pouvons la decrire, mais nous croyons devoir 

 la signaler parmi les especes Canariennes." 



How this species came to be set down here as unique is not 

 obvious. It is extremely common on the whole shore from Las 

 Palmas to the Isleta in Grand Canary ; and Mr. Lowe, at p. 191, 

 in a note (already quoted at p. 519-20) to his List of Mogador 

 Shells, mentions that it is very abundant at Arecife, in Lanzarote, 

 adding that the shell sent him by Mr. Webb is a young example 

 of a Nassa, closely allied to N. mutahilis, Linn. Since a shell so 

 common as this Nassa was unlikely to be overlooked, it seemed 

 to me probable that M. d'Orbigny had in this instance also fol- 

 lowed Lowe, and that it was this species he had in view at p. 90 

 as " No. 133. Buccinum mutabile, Linn. Hab. les iles Canaries 

 (les individus plus petits) ;" but Mr. Edgar Smith assures me 

 that D'Orbigny's type specimen from Canary is a genuine N. mu- 

 tahilis, L., and that this species, sent by Mr. Webb to Lowe, is 

 Buccinum conspersum, Philippi (Zeitsch. f. Malacologie, 1848, 

 p. 139 ; and also in his Abbildungen, &c., neuer Conchylien, 

 vol. iii. Lief. v. p. 44, pi. i. f. 6). 



It is not found at Madeira ; but at the Selvagens, three small 

 islands about 150 miles S.S.E. from Madeira, and 100 miles N. 

 of Teneriffe, it seems to be abundant. I judge so at least from 

 its presence among a few marine shells procured thence by the 

 Baron do Castello de Paiva, and forwarded by him to Mr. Lowe, 

 which have heen handed ou to me by Mr. Wollaston. 



