72 
THE VOYAGE OF H.M.S. CHALLENGER. 
(d’Orbigny placed in the genus Hyalsea = Cavolinia all the members of the family 
Cavoliniidse), or even to other groups, and confine our attention to the forms really 
belonging to this genus, we shall find, for extant species, fifty-four specific titles, of 
which three are used with several connotations, which increases the mischief still further. 
Hyalsea affinis, d’Orbigny. 
Hyalsea angulata, Souleyet. 
Hyalsea australis, Peron. 
Hyalsea chemnitziana, Peron and 
Lesueur. 
Hyalsea complanata, Gegenbaur. 
Cleodora compressa, Souleyet. 
Hyalsea cornea, Lamarck. 
Hyalsea costata, Pfeffer. 
Hyalsea cumingii, Sowerby. 
Cleodora curvata, Souleyet. 
Hyalsea cuspidata, Delle Chiaje 
(non Bose). 
Hyalsea depressa, Bivona ( non 
d’Orbigny). 
Hyalsea depressa, d’Orbigny. 
Hyalsea ecaudata, Lesueur. 
Hyalsea elongata, Lesueur. 
Hyalsea femorata, Gould. 
Hyalsea fissirostris, Benson. 
Hyalsea jlava, d’Orbigny. 
Hyalsea forskahlii, Lesueur. 
Hyalsea gegenbauri, Pfeffer. 
Hyalsea gibbosa, Rang. 
Hyalsea globulosa, Rang. 
Pleuropus hargeri, Verrill. 
Hyalsea imitans, Pfeffer. 
Hyalsea inermis, Gould. 
Hyalsea inflexa, Lesueur. 
Hyalsea intermedia, Sowerby. 
Hyalsea labiata, d’Orbigny. 
Hyalsea Isevigata ~ d’Orbigny. 
Hyalsea vagin 
Hyalsea limbata, d’Orbigny. 
Pleuropus longifilis, Troschel. 
Hyalsea longirostris, Lesueur. 
Hyalsea minuta, Sowerby. 
Hyalsea mucronata, Quoy and 
Gaimard. 
Carolina natans, Abildgaard. 
Hyalsea obtusa, Sowerby. 
Hyalsea papilionacea, Quoy and 
Gaimard. 
Pleuropus pellucidus, Eschscholtz. 
Hyalsea peroni, Lesueur. 
Carolina pisum, Mprch. 
Cleodora pygmsea, Boas. 
Hyalsea quadridentata, Lesueur. 
Hyalsea quadrispinosa, d’Orbigny. 
Hyalsea reeriana, Dunker. 
Hyalsea rotundata, Boas. 
Hyalsea rugosa, d’Orbigny. 
Hyalsea teniobranchea, Peron and 
Lesueur. 
Hyalsea triacantha, Bronn. 
Anomia tridentata, Forsk&l. 
Cleodora trifilis, Troschel. 
Hyalsea trispinosa, Lesueur. 
Hyalsea truncata, Krauss ( non 
Lesueur). 
Hyalsea truncata, Lesueur. 
Hyalsea uncinata, Hoeninghaus ( non 
Rang). 
Hyalsea uncinata, Rang. 
Hyalsea uncinatiformis, Pfeffer. 
’, Cantraine. 
