NO. 1989. A8CIDIANS FROM NORTHEASTERN PACIFIC— RITTER. 477 



STYELA LOVENI (Sars). 



Ascidia loveni Sa.rs, 1851, p. 157, No. 101. 



Cynthia loveni Sars, 1858, p. 65. 



Stycla loveni Kiaer, 1893, No. 9, p. 48.— Hartmeyer, 1903, p. 209, text figs. 6-11; 



pi. 5, figs. 4-6; pi. 11, figs. 6-9. 

 Styela aggregata Traustedt, 1880, p. 410; 1883, p. 480, pi. 36, fig. 17; pi. 37, figs. 



9-12.— Hartmeyer, 1899, p. 479, text fig. E.; pi. 22, fig. 8; pi. 23, fig. 5. 

 Tethyum loveni Hartmeyer, 1909a, p. 1359. 

 Goniocarpa loveni Huntsman, 1911, p. 131. 



(See Hartmeyer, 1903, for fuller synonymy and discussion of same, 

 and variation of this species.) 



There are only two specimens in the collection which I assign to this 

 species. That they are specifically the same as the animals which 

 Kiaer and Hartmeyer have treated as S. loveni there can be little 

 doubt. On the question of whether the original Ascidia loveni v.^as 

 really of the same group I do not pretend to have a first hand opinion, 

 since I'have not seen Sars's description. I do not hesitate, however, 

 to follow Kiaer and Hartmeyer, since both are not onty acquainted 

 with Sars's work, but also have had opportunity to study specimens 

 from the locality from which his animals came. Both specimens 

 are of the flat form and are attached to stones. One of them is so 

 much flattened as to be hardly more than a thick disk closely and 

 broadly adherent to the stone. Neither possesses any of the furri- 

 ness which, according to Hartmeyer, is found on some individuals 

 of the species, and is so characteristic of the closely related species 

 S. hemicxspitosa. In his first paper dealing with loveni, Hartmeyer 

 (1899) says, ''jederseits zwei wurstartige Ovai'ien." However, this 

 is probably a slip of the pen, since both the text and figures of his later 

 work (1903) show but one ovary on each side. 



Albatross 3331, lat. 54° 01' 40" N.; long. 166° 48' 50" W. Bering 

 Sea, 350 fathoms, bottom m., August 21, 1890, 1 specimen. 



Dall No. 1161, anchorage Big Koniuji Island, Shumagin group, 

 Alaska, 6 to 20 fathoms, sand, rocks, 1 specimen. 



STYELA GIBBSn Stimpson. 



Styela gibbsii Stimvson , 1864. — Herdman, 1898, p. 261, pi. 13, figs. 1-4. — Ritter, 



1900, p. 604, pi. 18, figs. 13, 14; 1907, p. 23.— Huntsman, 1911, p. 131. 

 Tethyum. gihbdi Hartmeyer, 1909a, p. 1359. 



There are 4 specimens of this common Puget Sound species from 

 the Sound collected on rocks, between tides by O. B. Johnson in July, 

 1889. These need no remark, as they are perfectly typical. 



In addition there are a dozen specimens from off Oregon which, 

 while agreeing closely with Puget Sound animals in external charac- 

 ters, differ from them slightly in a few particulars of internal structure. 



