SYKES : MOLLUSCA. OF " PORCUPINE " EXPEDITIONS. 331 



CAVOLINIA, Abilgaard, emend. 

 Cavolinia gibbosa (Rang). 

 Hyalcea gihhosa (Hang), D'Orbigny : Voy. Amer. Merid., vol. v, p. 495. 

 Cavolinia giblosa, Rang: Pelseneer, "Challenger" Rep., Pteropoda, 

 pt. ii, p. 82 ; Tesch, Thecosomata, etc., Siboga Exped., p. 40. 

 "Porcupine" Expedition, 1870, Station 56. 

 Distribution. — AilimiiQ,, Pacific, and Indian Oceans. 

 A fragment from Station 16 of the cruise of 1870 may belong here ; 

 several other station numbers also appear on a box in the Museum. 



Cavolinia globttlosa (Rang), Gray. 

 Cavolina glohulosa, Rang : Gray, Cat. Brit. Mus., pt. ii, Pteropoda, p. 8. 

 Cavolinia globulosa, Rang: Pelseneer, "Challenger" Rep., Pteropoda, 

 pt. ii, p. 81 ; Tesch, Thecosomata, etc., Siboga Exped., p. 41. 

 Jeffreys notes in his manuscript that this form was taken in the 

 cruise of 1870 ; the only box I can trace so named is labelled " No. 55, 

 N.L. 37-30; W.L. 6-51, 1456 f." If we read W.L. as a slip for E.L. 

 this agrees with Station 55, but probably the shells really come from 

 Station 56 (see ante, vol. vi, p. 24). 



Cavolinia inflexa (Lesueur). 

 Hyalaa inflexa, Lesueur : Bull. Soc. Philom., vol. iii, p. 285. 

 Cavolinia inflexa, Lesueur: Pelseneer, "Challenger" Rep., Pteropoda, 

 pt. ii, p. 85 ; Tesch, Thecosomata, etc., Siboga Exped., p. 43. 

 "Porcupine" Expedition, 1870, Stations 16, 17, 30, 56; Adventure 

 Bank, 92 fathoms. 



Distribution. — Atlantic, Indian, and Pacific Oceans. Italian and 

 Sicilian Tertiaries. 



Nineteen numbers appear on one box, but I have discarded them, as 

 I expect they mostly or all refer to stations whence Jeffreys considered 

 he had seen the species, and one cannot be sure to which cruise they 

 refer. 



Cavolinia teispinosa (Lesueur), Blainville. 

 HyalcBa trispinosa, Lesueur : Blainville, Diet. Sci. Nat., vol. xxii, p. 82. 

 Cavolinia trispinosa, Lesueur: Pelseneer, "Challenger" Rep., Ptero- 

 poda, pt. ii, p. 76 ; Tesch, Thecosomata, etc., Siboga Exped., 

 p. 35. 

 "Porcupine" Expedition, 1869, Station 20; 1870, Stations 16, 

 17, 17«; Tangier Bay, 35 fathoms; Adventure Bank, 92 fathoms. 



Distribution. — Atlantic, Indian, and Pacific Oceans. Possil in 

 European Tertiary. 



Cavolinia tridentata (Forskal). 

 Anomia tridentata, Forskal: Descr. Anim. Orient., p. 124. 

 Cavolinia tridentata, Forskal: Pelseneer, "Challenger" Rep., Ptero- 

 poda, pt. ii, p. 83; Tesch, Thecosomata, etc., Siboga Exped., 

 p. 37. 

 "Porcupine" Expedition, 1870, Station 17; Tangier Bay, 35 

 fathoms ; Adventure Bank, 92 fathoms. 



Distribution. — Atlantic, Indian, and Pacific Oceans. Fossil in 

 European Tertiary. 



