65 



Class I. GASTEROPODA. , 



Adult walking on an expanded foot. 



Subclass I. Gill comb-like, formed of one or two series of lamella y^c^a-^- y 

 under the mantle on the back of the neck, or rarely round its A^/yCt^^t-t^ ^^^ 

 edge. Adult and larva shell-bearing, larva furnished with deci- j. ^ Jf^ * 

 duous cephalic fins. Unisexual, or hermaphrodite and self-im- ^a^ /^''^'^ t 

 pregnating. Ctenobranchiata, Gray, 1840. Prosobranchiata, C^^ 



M. Edw. 1846. 



Order I. Pectinibranchiata, Cuvier. I 



Gill comb-like, formed of one or (rarely of ) two longitudinal series j 



of laminae on the left side of the mantle over the back of the neck. 

 Animal unisexual. Shell spiral. ^ I 



Suborder I. Zoophaga. 



Mantle produced into a siphon in frmit. , y ^^.^L^d*^ ^yiR^A'^ 



Fam. 1 . Strombidee. ^cfxttl^ y^ /ityH.^i^ 



Teeth, central 1, lateral 33, uncinated. Muzzle produced. Eyes ' 



pedicelled. Operculum small, claw-Uke, or wanting. 



* Tentacle on middle of eye-pedicel. Operculum claw-like. 



1. Strombus, Gray, Gen. Moll. n. l=Pyramea et Lambis, Mus. /^a^^c^^ ^ ^ L ^JL 



Ber/. 1818. , 



1 . S. gigas, Kiener, t. 80. f. 2 ; Forskael, t. 81 . f. 4 ; Lamk. t. 83. f . 1 . I 



2. S. PugUis, Bowdich, t. 81. f. 3. ] 



3. S, Auris-DianiT;, Quoy, t. 2. f. 1. 



4. S. Canarium {var. Isabella), Qiioy, t. 2. f. 4 e? , 3 ^ ; Eydoux, j 



t.Sla. f. 1. 



5. S. gibberulus, Quoy, t. 81. f. 1. j 



6. S. Papiho, Quoy, t. 81. f. 2. ( 



7. S. lentiginosus, Quoy, t. 81. f. 5. , 



8. S. variabilis, Quoy, t. 2. f. 2. 



9. S. Luhuanus, Quoy, t. 2. f. 6. 



10. S. plicatus, Quay, t. 2. f. 5. ' 

 U.S. vittatus, Adams, t. 84 a. f. 5. 



2. Pterocera, n. 2. 



1. P. trvmcata, Kiener, t. 79 ; Freycinet, t. 70. f. 5. t ^ / i 



2. P. Lambis, Quoy, t. 1. f. 2(?, f. 1 ? . Teeth of sexes different A*'-^ ^' ^ \ 



according to Quoy, Ast. t. 49. f. 20 ? . t. 50. f. 8 c? . /• <. /-./ HU jvui *«-«**'^ 



3. Fusus, n. 3. /t»-«-. 



1. F. clavus. Rostellaria curvirostris, Kiener, t. 80. ' 



2. F. subulatus, Adams, MSS. t. 84 a. f. 6. 



** Tentacle none ? Operculum y^tm. ^^**''tt*^-*-;- 



4. Seraphys, n. 4=Terebrina, Rafinesque. Oper. none. 



I. S. Terebellum (Terebellum subvdatum), Adams, MSS. t. 84a. f. 3, 



t. 82. f. 3. I 



F ! 



\ 

 1 



