64 Mr. A. H. Cooke on Vulsella. 



7. Vulsella rugosa^ Lamarck (An. sans Vert. ed. 2, vol. vli. 



p. 269). 



Vuhella rugosa, Delessert, tab. xviii. fig. 3 ; Hanley, Recent Shells. 



Hah. ? (Lam.)^ Red Sea, Suez [Issel, MacAnirew), 



Persian Gulf {Mac Andrew, MS.). 



Not the V. rugosa of Reeve (Concli. Icon. pi. i. figs. 7, 8). 

 Lamarck describes his rugosa as follows : — 



'' V. testa oblonga, suharcuata, ijlanulata, rugis longitudlna- 

 libus, striisque transversis arcuatis, rugas decussantibus,^^ from 

 which little could be made out, were not the following addi- 

 tion made : — " Celle-ci est plus aplatie que celle qui precede 

 {Mans, Lam.), non ou presque point baillante, et a le hord 

 antirieur tres courbe?'' Now Reeve's figures represent a shell 

 by no means " courbd," either on the anterior or the posterior 

 edge, while his fig. 7, instead of being broader, is consider- 

 ably narrower than his idea of Lamarck's Mans. The true 

 rugosa of Lamarck is that figured by Delessert (unfortunately 

 the only Vulsella he figures), and corresponds exactly to that 

 form described by Reeve as corollata and, with very slight 

 modifications, as phasianoptera. 



8. Vulsella cremdata^ Reeve (Conch. Icon, ut sup. pi. i. 



fig. 9). 



Hah. Red Sea {Reeve), Suez {Issel, Mac Andrew) . 



A name for another of the numerous forms which belong 

 to spiongiarum, Lam. {=rugosa, Reeve). Closely akin to 

 isocardia. Reeve. Even Issel (Mar Rosso, p. 100) remarks 

 on its close relation to spongiarum, and hazards the conjecture 

 "forse non ne difierisce specificamente." 



9. Vulsella limceformis. Reeve (Conch. Icon, ut sup. pi. ii. 

 figs. 10 a, 10 5). 

 Hab. Port Adelaide, S. Australia {Reeve), St. Vincent's 

 Gulf {Angas, in P. Z. S. 1865, p. 653). 

 Type in Brit. Mus. 



A careful examination of the type leads to the conclusion 

 that there is absolutely no specific distinction between this 

 form and tasmanica, Reeve, +rudis, Reeve, the Australian 

 and Tasmanian form of the common spo7igiarum, Lam. 



10. Vulsella phasianoptera, Reeve (Conch. Icon, ut sup. 



pi. ii. fig. 11). 

 Hob. Australia {Reeve). (See no. 13.) 



11. Vulsella rudis^ Reeve (Conch. Icon, ut sup. pi. ii. 

 fig. 12). 

 Hob. Swan River {Reeve), Port Lincoln {Angas. m^.Z.^. 

 1865, p. 653). 

 The affinities of this form have been laid down under no. 9. 



