148 



The branchial cavity is extensive, extended longitudinally, 

 and has on its left side a long straight comb of fine and closely 

 set lamellae. The siphon is thick and short, and capable of 

 being projected only a short distance. Animal of an uniform 

 clear orange colour. Voyage de l'Astrolabe, p. 462-4. M. 

 Kiener's remarks on the animal are so similiar to the fore- 

 going, that they were most probably taken from it. The 

 animal of Terebra subulata was also examined by Quoy and 

 Gaimard, and was found very closely to resemble T. dimidiata, 

 differing only in the relative size of some of the organs. The 

 animal was of a deep yellow colour. Mr. Gray, in the Zoology 

 of Beech ey's Voyage, p. 125, thus speaks of the animal, 

 the species not being indicated : — " the tentacles of this genus 

 are exceedingly minute, and placed on the upper edge of 

 the inflexed trunk, and they have no eyes. In one spe- 

 cies from St. Christopher which I have examined, there was 

 no appearance of any tentacles, nor eyes ; in another, the 

 tentacles are very small with eyes at their tip. The male 

 organ is extremely long, filiform, as long as two whorls of 

 the shell. The foot is small, folded across when contracted. 

 The head is rounded. The mantle has a very long slender 

 filiform breathing canal." 



The number of species belonging to this group at the pre- 

 sent time is rather considerable, and in these halcyon days of 

 new species, the genus has kept in the current and received 

 an accession of strength scarcely inferior to any other. A few 

 species, and among these some of the largest and most richly 

 adorned, were known to the earliest systematic writers, and 

 were placed by them in a separate and distinct section of 

 Buccinum. Subsequently Bruguieres embodied them under 

 the present generic head, but it was Lamarck who more par- 

 ticularly brought it into notice, in the illustration of the group 

 by several well-known species. Previous to Bruguieres 

 Adanson, and subsequently Schumacher and Blainville have 

 made mention of it, but only to originate errors and create 

 confusion. The number of recent species given by Lamarck 

 is twenty-four ; M. Deshayes' list states the recent species to 

 be forty-four, and the fossil sixteen in number ; the monograph 

 of M. Kiener contains only thirty-five recent species. These 

 numbers have been chiefly augmented by a list of twenty-one 

 species, published by Mr. Gray in the proceedings of the 

 Zoological Society for 1834, which are of prior date to M. 

 Kiener's labours, but are unnoticed by him ; and by a further 

 addition of fifty species, published by myself in the same 

 proceedings of 1843. At this moment, the amount of recent 



