THE CAMPANULARID^ AND THE BONNEVIELLID^. 69 



Laomedea loveni Hincks, Ann. Mag. Nat. Hist., ser. 3, vol. 7, 1861, p. 260. 



Laomedea loveni Wright, Observations on Brit. Protozoa and Zoopli., Ann. Mag. Nat. Hist., ser. 3, vol. 8, 1861, 



p. 126. 

 Laoviedea flexuosa Allman, on the structure of the reproductive organs in certain Hydroid-Polypes, Proc. Royal Soc. 



Edinburgh, vol. 4, 1862, p. 56. 

 Laomeda loveni Kirchenpauer, Die Seetonen der Elbmundimg, 1862, p. 23. 

 Laomeda loveni Norman, Report 31st Meeting Brit. Ass. Adv. Sci., 1862, p. 152. 

 Laomedea loveni Alder, Suppl. Zooph. Northumb. and Durham, 1863, p. 237. 

 Campanularia geniculata Sars, Bemserkninger over fire norske Hydroider, 1863, p. 34. 

 Campanularia geniculata Allman, Report of 33rd meeting Brit. Ass. Adv. Sci., 1864, p. 381. 

 Gonothyrxa (Laomedea) loveni Allman, Report of 33rd Meeting of Brit. Ass. Adv. Sci., 1864, p. 376. 

 Laomedea loveni Allman, Report of 33rd Meeting of Brit. Ass. Adv. Sci., 1864, p. 375. 

 Gonothyrsea loveni Allman, Report of 33rd Meeting of Brit. Ass. Adv. Sci., 1864, p. 374. 

 Gonothyrxa loveni Hincks, Quart. Journ. Sci., vol. 2, 1865, p. 412. 



Campanularia geniculata van Beneden, Reclierches sur la Fauna littorale de Belgique, 1867, p. 150. 

 Campanularia dichotoma van Beneden, Reclierches sur la Faune littorale de Belgique, 1867, p. 150. 

 Gonothyrxa loveni Hincks, British Hydroid Zoophytes, 1868, p. 181. 

 Gonothyrxa loveni Hincks, Pop. Sci. Review, vol. 8, 1869, p. 45. 

 Gonothyrxa loveni Norman, Shetland final Dredging Report, vol. 2, 1869, p. 322. 

 Gonothyrxa loveni Allman, Gymnoblastic Hydroids, 1871, p. 55. 

 Gonothyrxa loveni Veerill, Proc. Amer. Ass. Adv. Sci., 1873, p. 364. 

 Gonothyrxa loveni McIntosh, Ann. Mag. Nat. Hist., ser. 4, vol. 13, 1874, p. 209. 

 Gonothjrxa loveni Schulze, Nordsee Exped., Coelenteraten, 1874, p. 130. 



Gonothyrxa tenuis Clark, New and rare species of Hydroids from the New England Coast, 1876, p. 61. 

 Gonothyrxa loveni Winther, Fortegnelse over de i Danmark Hydroider, 1879-80, p. 220. 

 Gonothyrxa loveni de Varenne, Sur la Reproduction des Polypes Hydraires, 1882, pp. 31, 62. 

 Gonothyrxa loveni Weismann, Entstehung der Sexualzellen bei den Hydromedusen, 1883, p. 131. 

 Gonothyrxa loveni Thallwitz, Ueber die Entwicklung der mannlichen Keimzellen bei den Hydroiden, 1885, p. 426. 

 Laomedea {Gonothyrxa) loveni Levinsen, Meduser, Ctenophorer og Hydroider fra Gronlanda Vestkyst, 1893, p. 170. 

 Gonothyrxa loveni Crawford, Ann. Mag. Nat. Hist., ser. 6, vol. 16, 1895, p. 260. 

 Gonothyrxa loveni Nutting, Notes on Plymouth Hydroids, 1896, p. 3. 

 Gonothyrxa loveni Hartlaub, Die Hydromedusen Helgolands, 1897, p. 451. 

 Gonothyrxa loveni Nutting, Hydroids of the Woods Hole Region, 1901, p. 352. 

 Gonothyrxa loveni Hargitt, Synopsis of N. A. Invert. Hydromedusse, part 2, 1901, p. 386. 

 Gonothyrxa loveni Billard, Contribution ^ I'etude des Hydraires. 1904, p. 172. 

 Gonothyrxa tovcwi Jaderholm, Northern and Arctic Invert., pt. 4, Hydroiden, 1909, p. 64. 

 Laomedea loveni Beoch, Die Hydroiden der arktischen Meere, 1909, p. 228. 

 Gonothyrxa loveni Bedot, Hydroides de Roscoff, 1911, p. 219. 

 Gonothyrxa loveni Stechow. Hydroiden der Munchener Zoologischen Staatssammlung, 1912, p. 356. 



The synonymy of this species is greatly confused on account of tlie fact that early writers 

 gave the name Sertularia dichotoma to two distinct species, i. e., Gonothyrsea loveni and Obelia 

 dichotoma. The priority, however, seems to be in favor of Sertularia dichotoma (Linnseus) 

 1758, which is the original name given to Ohelia dichotoma. 



Trophosome.^ — Colony consisting of a clump of branched stems attaining a height of 3 cm. 

 although Allman mentions colonies 3 or 4 inches in height. The stems are quite irregularly 

 branched, the details of the branches agreemg with those of the stem from wliich they spring. 

 Stem and branches flexuose, with a series of 3 to 6 annulations immediately above each pedicel 

 origin. Pedicels alternate, shorter than the hydrothecse, gradually diminishing in diameter 

 from proximal to distal end, and annulated throughout. The hydrothecse are gracefully cam- 

 pantdate in form, gradually curved from about half their height to the base and the margin 

 is ornamented with 10-12 sharply cut shallow teeth whose ends are squared off, thus giving a 

 castellated appearance. The diaphragm is very low, leaving a scarcely appreciable basal 

 chamber. 



Gonosome. — Gonangia borne near the axis of the pedicels and often in pairs. They are 

 obconic in form, fuUy developed ones being about 1.5 times as long as the hydrothecse and not 

 quite twice as long as broad. The distal end is abruptly truncated and bears from 2-6 of the 



' Description of a specimen collected by the writer near Plymouth, England. 



