20 CTENOPHORES OF THE ATLANTIC COAST OF NORTH AMERICA 



observer of the American Lesueuria, and I am beginning to suspect that 

 this so-called Lesueuria is only a Bolinopsis infundihukim with its oral 

 lobes torn off and the edges healed over to produce a rounded contour, 

 for I found many specimens of this ctenophore in Halifax Harbor in 

 such condition after a storm in September. 



Genus BOLINOPSIS L. Agassiz. {sens, emend.) 



Bolina, preoccupied by Rafinesque for moUusca in 1815. 



Bolina, Mertens, 1833, M6m. Acad. Sci. St. P6tersbourg, Sci. Math, et Nat., s6r. 6, 

 tome 2, p. 513. — Agassiz, L., 1849, Mem. Amer. Acad., vol. 4, p. 349; also, 

 i860, Cont. Nat. Hist. U. S., vol. 3, p. 249. — Patterson, 1839, Trans. Roy. 

 Irish Acad., vol. 19, p. 154. — Agassiz, A., 1865, North Amer. Acal., p. 14. — 

 Chun, 1880, Ctenophoren Golfes von Neapel, pp. 290, 292. — von Lenden- 

 FELD, 1885, Proc. Linnean Soc. New South Wales, vol. 9, part 4, p. 929. — 

 Chun, 1898, Ctenophoren der Plankton-Expedition, p. 22. — Moser, 1908, 

 Abhandl. Akad. Miinchen, Suppl. Bd. i, Abhandl. 4, p. 47. 



Springbrunner-Rotzfisch, Martens, 1675, Spitzbergische Reisebeschr., p. 131. 



Beroe, Muller, O. F., 1776, Zool. Danica, Prodromus, Nr. 2816, p. 232. 



Mnemia, Sars, M., 1835, Beskriv. og Jagttagelser, p. 23. 



Bolina, Alcinoe, Anais, Lesson, 1843, Hist. Zooph. Acal., pp. 83, 89, loi. 



Anais, preoccupied for Aves by Lesson, 1840. 



Bolinopsis, Agassiz, L., i860, Cont. Nat. Hist. U. S., vol. 3, p. 290. 



Unfortunately, the old and familiar generic name Bolina is pre- 

 occupied, having been used in 181 5 for mollusca by Rafinesque. Alcinoe 

 of Rang, 1828, and Mnemia of Eschscholtz, 1829, apply to a ctenophore 

 which is certainly not a Bolina but is closely allied to if not identical with 

 Mnemiopsis. Lesson's Anais, 1843, "^3-s preoccupied by himself in 1840 

 for birds, and Hapalia of Eschscholtz, 1825, is founded upon an imper- 

 fect specimen which may possibly be a Bolina, but even so the name 

 Hapalia is preoccupied for Lepidoptera by Hiibner in 181 6. 



Bolinopsis of L. Agassiz, i860, is the only one of these names which 

 can be applied to the genus. Agassiz instituted this name to apply to 

 the Bolina elegans of Mertens, 1833, and he separated it from Bolina on 

 account of the numerous, small papillae which are found upon all parts 

 of the outer surface of the body, except the lower parts of the oral lobes. 

 We may, however, consider this to be a specific rather than a generic 

 character, especially as by so doing we will not confuse this genus with 

 Leucothea (Eucharis) , wherein the papillas are much larger and cover the 

 whole of the outer parts of the oral lobes. Moreover, the lateral pits in 

 the tentacular axis, so well developed in Leucothea, are not found in 

 Bolinopsis. Thus by broadening the definition of Bolina we may retain 

 it under the somewhat similar name Bolinopsis. I prefer to do this 

 rather than to institute a new and wholly unfamiliar name. 



GENERIC CHARACTERS. 



Lobatas in which the 2 oral lobes are of medium size and not provided 

 with powerful muscles as in Ocyropsis. The 4 relatively short, simple 

 auricles arise from the sides of the body immediately above the mouth 

 and close to the sides of the oral lobes. They are not set within deep 

 grooves as in Mnemiopsis. The peripheral chymiferous tubes form 

 closed circuits in the oral lobes and do not end blindly as in Deiopea. 

 The auricles are shorter and the oral lobes much longer than in Lesueuria. 

 The combs of cilia are small and numerous. 



The type species is Bolinopsis infundibulum of the Arctic and cold 

 temperate regions. 



