41 



From this collection I nuMUiim a single shell (Stat. 102) which exhibits some variations 

 (PI. II, iigs. 34 — 33). It is inurh imire flattened thaii any otlicr specimen; the transverse grooves 

 on tlic ventral side are Icss distinct, and the terminal puint is ahnost straight. 



6. Cavolinia o-/ol>itlosa (Rang). 



1850. Cavolina globidosa Rang, in: Grav, Catalogue of the Molhisca in the collection of the 



British Museum, prt. II, Pteropoda, p. 8. 

 1850. Cavolina pisum IMprch, Catalogus conchyliorum quae reliquit KjERULF, p. 32, pi. I, hg. 7. 

 1852. Hyalaea globulosa Rang, in: SoULEVET, Voyage de la Bonite, vol. II, p. 142, pi. IV, 



figs. 20 — 24. 

 1888. Cavolinia globulosa Pelseneer, Chall. Rep., LXV, p. 81. 



Living animals : 



Stat. 96. Pearl-bank, Sulu Archipelago. i spec. 



Stat. 143. 1° 4'. 5 S., I27°52'.6E. i spec. 



Stat. 144. Damar Island. i spec. 



Stat. 177'. 2° 30' S., 129° 28' E. I spec. 



This species too has been recorded from many stations. The brown colour on the front 

 part of the ventral side has quite disappeared in some specimens, which in other respects do 

 not exhibit any difference with the other shells. From the literature on this species it may be 

 inferred, that this species does not occur in the Atlantic. After Bo.\s and Pelseneer, it has 

 been stated by Peck ^) and Smitii "). Pfeffer ^), Munthe ^) and Locard ^), however, have noted 

 definite localities. It seems extremely rare in this ocean. 



'O o' 



' o 



7. Cavolinia longirosfris (Lesueur). 



1821. Hyalaea longirosfris Lesueur, in: DE Blaixville, Dict. d. Sc. nat., vol. XXII, p. 81. 

 182 1. Hyalaea ecaudata Lesueur, Ibid., p. 82. 



1) Proc. U. S. Nat. Mus., vol. XVI, p. 452. 



2) Proc. Zool. Soc. 1890, p. 254. 



3) .\bh. Naturw. Ver. Hamb., p. 84. 



4) Pterop. i Ups. Cn. Zool. Mus., Bih. till I-C. Sv. Vet-akad. Handl., Bd. 



5) Exped. Sc. Travailleur et Talisman, Mollusques testacés, t. I, p. 10. 

 SIBOGA-EXPEDITIE Lil. 



13, afd. IV, n" 2, p. 25. 



