KEPORT ON THE GASTEROPODA. 211 



between which and the sharp patulous edge the spiral threads of the exterior sculpture 

 are just visible ; it is very slightly emarginated above near the body, and well arched 

 throughout, till along the canal, where it is straight but oblique. Inner lip straight 

 across the body, hollow in the middle, and straight but unusually oblique down the whole 

 pillar, which is not in the least twisted : a thin layer of glaze narrowly spreads along its 

 whole length. Operculum thin, subtriangular, pointed behind, and bluntly so in front at 

 the apex, which is subterminal, but slightly coiled in to the inner side. H. 0"9 in. B. 039. 

 Penultimate whorl, height 0'16. Mouth, height 0-52, breadth 0'2. 



This specimen is classed as a Mctula with considerable doubt : the outer lip is not thickened 

 externally, nor distinctly toothed internally ; but these features are perhaps due to the shell not 

 being quite full-grown ; the mouth, too, is a little broad for the genus. The operculum of Metula 

 is unknown to me; but Adams' figure of the operculum of Cantharus is in form very similar (only 

 that in the Challenger species the apex is a little more turned in subspirally), and Troschel confirms 

 Adams' classification here, and puts the two genera in closest collocation. The shell has some faint 

 resemblance to Pisania reticulata, A. Ad. 



2. Pyrula, Lamarck, 1799. 



Species. 

 1. Pyrula morio (Linne). 2. Pyrula tematana (Gmelin). 



1. Pijrula morio (Linne). 



Murex morio, Linne, Syst. Nat. (ed. 12), p. 1221, No. 552. 

 Le Nivar, Adanson, Senegal, p. 141, pL ix. fig. 31. 



Chemnitz, Conch. Cab., vol. iv. p. 139, pL cxxxix. figs. 1300, 1301. 

 Fusus morio, Wood, Ind. Test., p. 131, pL xxvi. fig. 78. 



„ „ Lamarck, Anim. s. vert., vol. vii. p. 127, and (ed. Desh.) vol. ix. p. 451, sp. 16. 



„ ,, Deshayes, Encycl. method., vol. ii. (2) p. 155, pi. ccccxxx. fig. 3. 



„ „ Kiener, Iconog., p. 56, sp. 46, pi. xxii. fig. 2, and pi. xxiii. fig. 2. 

 Pyrula morio, Reeve, Conch. Icon., vol. iv. pi. i. fig. 3. 



,, „ Hanley, Ipsa Linn. Conch., pp. 300, 523. 



„ „ Fischer, Cat. Coq. Guadaloupe, p. 8, sp. 1. 



„ „ Kobelt in Conch. Cab. (ed. Kiister), p. 35, pi. xxviii. figs. 4, 5, and pi. xxxiii. figs. 4, 5. 



» „ Sowerby, Thes. Conch., pi 36, p. 102, sp. 13, pi. ccccxviii. figs. 1, 2. 



Tryon, Manual, voL iii. p. Ill, pi. xliii. figs. 228, 229. 



July 28, 1873. St Vincent, Cape de Verdes. 7 to 25 fathoms. 



Habitat. — East and west sides of the Tropical Atlantic, Senegambia (Adanson), 

 Guadaloupe (Fischer). 



