CAVOLINIDvE. 7 



4. Cavolina affinis 



Shell globular, inflated, horny, posteriorly three-spined ; middle 

 spine longer and narrower than the others, slightly inflexed ; 

 aperture transverse, narrow ; inferior lip very long, narrow, sinu- 

 ated superiorly. 



Hyalaea affinis, UOrh. Voy. Am. Mer. Moll. 91, t. 5, f. 6— lo; 



Desh. in Lamk. Hist. ed. 2, vii. 418. 

 ? Hyalaea Peronii, Lesueur^ Bull. Soc. Phil. 1813. 



Hub. 



5. Cavolina gibbosa. 



Shell globular, inflated, veiy gibbous anteriorly, three-spined poste- 

 riorly ; lateral spines short, middle acuminated, strongly recurved ; 

 aperture narrow, deeply covered with the lip. 



Hyalaea gibbosa, Rang, Monogr. ined. ; D'Orh. Voy. Am. Merid. 



Moll. 95, t. 5, f. 16—20 (1836); Moll, de Canaries, 28; Ram. 



Sagra, Hist. Cuba Moll. 74 ; Philippi, Sicil. ii. 71 ; Cantraine, 



Bull. 27, t. 1, f. 5 ; Lamk. Hist. ed. 2, vii. 419. 

 Hyale bossue, Voy. Bonite Moll. t. 4, f. 13, 19. 



a — c. Animal and shell, in spirits. Presented by Lieut. A. 

 Smith, R.N. 



6. Cavolina uncinata. 



Shell globular, of a transparent homy colour, posteriorly three- 

 spined ; median spine longest, strongly curved, hooked ; aperture 

 narrow ; lips shorter than in the other species. 



Hyalaea uncinata. Rang, pi. ined.; DOrb. Voy. Am. Merid. Moll. 



93, t. 5, f. 11—15 (1836) ; Ramon, Sagra, Hist. Cuba Moll. 73, 



t. 2, f. 1 — 4 ; Desh. in Lamk. Hist. ed. 2, 418. 

 Hyale a crochet, Voy. Bonite Moll. t. 4, f. 8, 12. 



a — €. Shell. Coast of Brazil. Presented by Dr. Sinclair, R.N. 

 /. Shell. 



g—r. Shell. Red Sea. 



s — z. Animal and shell, in spirits. Tropics. Presented by 

 Lieut. A. Smith, R.N. 



