LUTKEN ON THE ANTHOZOA, ETC. OF GREENLAND. 187 



2. L, quadricornis, Miill. 



L. fascicularis, Flmg. 



3. L. {Halicyclus) octoradiata (Lmk). 



L. auricula, Rathke. 

 Steenstrup, 1. c, p. 108. 



4. L. {Craterolophus) convolvulus, Johnst. 



L. campanulata, Lmx. 



A single specimen, collected by the late Governor 



Olrik ; the other species are not uncommon. (Greenl. 



Akuilisaursak, Unnerarsuk, Ornigarsuk.) 



XXI. — A Revised List of the Acaleph^ and Hydrozoa of 

 Greenland. By Dr. Chr. Lutken, University 

 Museum, Copenhagen. 1875. 



The MeduscB and Hydroidee of Greenland have not been 

 satisfactorily worked out. The following list must be regarded 

 only as preliminary, being limited to those species whose occur- 

 rence in Greenland can be stated on tolerably good authority. 



Ctenophora (Beroidse). (Greenl. Ikpiarsursak.) 



1. Mertensia ovum (Fabr.). 



F. Gr. 355 {Beroe ovum), 



Bero'e pileus, Scoresby, Arct. Reg. II. t. 16, f. 4. 



Cydippe ovum et C. cucullus, Esch., Syst. d. Akal., 



p. 25. 

 Al. Agassiz, Illust. Cat. North Amer. Acal., p. 26, 



f. 29-37. 



2. Pleurobrachia rhododactyla, Ag. 



F. Gr. 354 {Beroe pileus), 



L. Agassiz, Mem. Am. Ac, IV., p. 314, t. 1-5; Contr, 



Nat. Hist. Un. St., III., p. 203-248, i. 2a. 

 Al. Agassiz, Cat. N. Am. Acal., p. 30, f. 38-51. 



3. Idya cucumis (Fabr.). 



F. Gr. 353 {Beroe cucumis) ; Esch., Syst. d. Ak., 



p. 36. 

 ? /. bm-ealis, Less., Zooph. Acal., p. 1 34. 

 Obs. "^ Quid Beroe infundibulum, Fabr. (F. Gr. 352) ? 



Discophora (Greenl. Nuertlek) ; Hydrozoa. 



4. Aureliaflavidula, Per. Les. 



F. Gr. 356 {Medusa aurita), 



L. Agassiz, Contrib. Nat. Hist. U. St., III., pi. 6-9. 



Al. Agassiz, Cat. N. Am. Ac, p. 42, f. Q6-Q6. 



5. Cyanea arctica, Per. Les. (Gr. Nuertlersoak,) 



F. Gy. 35S {M. capillata). - . : 



L. Agassiz, Contrib., III., pi. 3-5«., 10, 10a. 

 Al. Agassiz, Cat., p. 44, f. 67. . ■ 



Obs, — The difference of Nos. 4 and 5 from their European re- 

 presentatives may still be questioned. 



