38 



I79I- Carolina natans Abildgaard, Nyeie Eftcnctning om dct Skaldyr som Forskal har 

 beskrevet under Navnet Anoinia trideniata, Skriv. Naturh. Selsk, Bd. I, Heft 2, 

 p. 175, pi. X. 



1 80 1. Hyalaea cornea Lamarck, Systeme des anim. sans vert. p. 140. 



1802. Hyalaea tridentata Bosc, Hist. nat. des coq., vol. H, pi. X, fig. 4. 



1804. Hyalaea papilionacea Bory de Saint- Vincent, Voyage dans les quatres principales iles 



des mers d'Afrique, vol. I, p. 137, pi. V, fig. i. 

 18 10. Hyale teniobranchc Peron et Lesueur, Histoire de la famille des Mollusques Pteropodes, 



Ann. i\Ius. Hist. Nat. Paris, vol. XV, pi. H, fig. 13. 

 18 1 3. Hyalaea peronii Lesueur, Memoire sur quclques animaux Mollusques, etc., Nouv. Bullet. 



See. Philom., vol. \\\, p. 284. 

 1813. Hyalaea chetnnitziana Lesueur, Ibid, p. 284. 



1816. Hyalaea austrahs Peron, Voyage de decouvertes aux terras australes, vol. \, pi. XXXL fig- 5- 

 1 82 1. Hyalaea forskalii Lesueur in: DE Blainville, Diet. d. Sci. Nat., vol. XXH, p. 79. 

 1821. Hyalaea teniobranchia de Blainville, Ibid., p. 80. 

 1836. Hyalaea affinis d'Orbigny, Voyage dans I'Amcrique meridionale, vol. V, p. 91, pi. V, 



figs. 6 — 10. 

 1848. Hyalaea truncata Krauss, Siidafrikanische Mollusken, p. 34, pi. II, fig. 12. 

 1859. Cavolina telemus A. Adams, On the Synonyms and Habitats of Cavolinia, Diacria and 



Fleuropiis, Ann. and Mag. Nat. Hist., ser. Ill, vol. 3, p. 44. 

 1877. Cavolinia cuiningii Sowerby in: REEVE, Conchologica iconica, vol. XX, Pteropoda, 



pi. I, fig. 5. 

 1S82. Cavolina trideniata Verrill, Catalogue of marine Mollusca added to the Fauna of New 



England during the past ten years. Transact. Conn. Acad. vol. V, prt. 2, p. 554, figs. 6— J. 

 1882. Cavolinia tridentata Fischer, Manuel de Conchyliologie, p. 434. 



Living animals; 



Stat. no. 4° 34' N., 122° o' li. i spec. 



Stat. 276. 6° 47'. 5 S., 128° 40'. 5 E. I spec. 



Empty shells: 



Stat. 45. 7° 24' S., ii8°i5'.2E. I spec. 



Stat. 52. 9° 3'.4 S., 1 19° 56'. 7 E. 7 spec. 



Stat. 88. o''34'.6N., 119° 8'.5 E. 3 spec. 



Stat. 95. 5°43'.5 N., 119° 40' E. 3 spec. 



Stat. 100. 6° 11' N., I20°37'.5E. 2 spec. 



Stat. 116. o^sS'-sN., 122° 42'. 5 E. i spec. 



Stat. 178. 2" 40' S., 128° 37'. 5 E. 3 spec. 



Stat. 208. 5° 39' S., 122° 12' E. I spec. 



Stat. 211. 5°40'.7 S., i20°45'.5 E. 5 spec. 



Stat. 221. 6° 24' S., 1 24° 39' E. 4 spec. 



Stat. 240. Banda. i spec. 



Cavolinia Iridcnlata occurs in the East-Indian Archipelago, but it is not so abundant as 

 nearl}' all the other species of Cavolinia (s. sir.). 



Bo.\s ') distinguished alread)- two varieties which, however, are linked to the type by 

 gradual transitions. One of these varieties, the Hyalaea afjinis of d'Orbigny was found at 

 station 116. It is an extreme form and, at first sight, it may be regarded as a Cavolinia 

 tmcinaia, with which Cavolijiia tridentata is closely allied, but it is distinguished from this species 

 by the less pronounced dorsal ribs, by the obliciue direction of the dorsal lip, the slight 



i) Spolia atbntica, p. 116 — 117. See his table 6, fig. 100. 



