201 



Genus GASKOINIA,* Roberts. 



1. G. edentula, Sowb., C. 111. sp. 102, f. 26,* 1837. 



C. Ic. pi. 17, sp. 85, a, b. Coq. Viv. p. 53, pi. 9, f. 2, 3. 



South Africa. 



Genus ARICIA, Gray. 

 Desc. Cat. Cjp., 1832. 



1. A. ? Annae, Roberts, Am. Jour. Conch., iv, p. 250, pi. 15, 



f. 4 — 6, 1868. Sandwich Islands. 



2. A. annulus, Linn., Sjst. Nat. p. 1179, 1767. 



C. Ic. pi. 15, sp. 71. C. 111. sp. 58, f. 115. Coq. Viv. p. 

 124, pi. 34, f. 2. 

 C. Noumeensis, Marie, var. Jour, de Conch, xvii, p. 18, pi. 2, 

 f. 6, 1869. Indian Ocean. 



3. A. Arabica, Linn., Syst. Nat. p. 1173, 1767. 



C. Ic. pi. 1, sp. 2. C. 111. sp. 3, f. 85. Coq. Viv. p. 105, 

 pi. 17, f. 1, 2. 

 C. amethi/stia, Linn., Syst. Nat. 1174, 1767. 

 Cfragilis, Linn., Syst. Nat. 1175, 1767. 

 C. elegantina, Duel., var., Guer. Mag. p. 28, 1833. 



Indian Ocean. 



4. A. arabicula, Lam., An. sans Vert, vii, p. 399, 1822. 



C. Ic. pi. 13, sp. 60. C. III. sp. 11, f. 77. Coq. Viv. p. 

 115, pi. 28, f. 3. Acapulco. 



5. A. arenosa, Gray, Zool. Jour. p. 147, 1824. 



C. Ic. pi. 18, sp. 27. C. 111. sp. 18, f. 75. Coq. Viv. p. 

 118, pi. 11, f. 4. Ajinaa Island. 



6. A. caput-anguis, Philippi,t Menke & Pfr. p. 24, 1849. 



Eab. ? 



7. A. caput- serpentis, Linn., Syst. Nat. p. 1175, 1767. 



G. Ic. pi. if, sp. 44. C. 111. sp. 57, f. 127, 131. Coq. 

 Viv. p. 112, pi. 49, f. 1. 

 0. albella, Lam., An. sans Vert, vii, p. 404, 1822. 

 C. reticulum, Gmel., Syst. Nat. p. 3407, 1790. 



Indian Ocean — Taheite. 



8. A. ? fabula, Kien., Coq. Viv. p. 97, pi. 54, f. 3. 



C. Ic. pi. 19, sp. 105a. Indian Ocean. 



* Shell entirely devoid of teeth; in other respects resembling Luponia. 

 This genus is respectfully dedicated to Mr. J. S. Gaskoin, of England, 

 who has devoted many years to the study of this family. 



t Probably a variety of ^. caput-serpentis, Linn. 



