History of British animals - University of Guam Marine Laboratory

Coryna. ZOOPHYTA. NUDA. 553204. P. gclatinosa.— Free, branched, tentacula circularlydisposed.Tubularia gel. Pall. EL 85—Found along with the preceding.Height about two inches, tufted, shrubby stem ; dichotomously branched ;scarcely enlarging at the extremity ; polypi with a bell-shaped disc, the tentacularegularly disposed, and appearing as if webbed at the base ; mouthwith a valve.NUDA.Gen. LXXIV. CORYNA.—Base fixed, head clavate, withdistributed tentacula, furnished with suckers.205. C. squamata.— Stem simple, carneous, tentacula linear.Dan.—C Hydra squamata, Mull. Zool. squam. (from Pall. Spic. Zool. x.36. 41. t. iii. f. 9 Tubularia affinis, Turt. Brit. Faun. 210.— Cor.squam. Lamarck, Hist. ii. 62. Flem. Phil. Zool. ii.616, t. v. f. 1—On fuci.Height about half an inch ;stem round, swelling into an ovate head, varyingin form ; the mouth is sometimes truncated with a radiated disc ; thetentacula are from 5 to 15 in number, longer than the head over which theyare distributed, and nearly of equal dimensions throughout the vesicles are;globular, and adhering to the body, at the base of the tentacula, by a shortfootstalk. The whole colour is pink, with a dark medullary band.206. C. glandulosa.— Dichotomously branched, coriaceous,tentacula with globularheads.Tubularia Coryna, Turt. Brit. Faun, (from Pall. Spic. Zool. x. 40, t. iv.Height nearly two inches, branches wrinkled, head lengthened, oval,mouth small ; tentacula thick, wrinkled, with globular heads, which adhereto the fingers when applied; vesicles globular, sessile, scattered over thehead ;colour tinged with pink, with a dark medullary band.We are inclined to consider the Coryna as one of the Tuhtdariadm, havinga reduced sheath, and agreeingin the tentacular origin of the ovaria. ThePlumatella, on the other hand, probably belongs to the Sertulariadcs, thoughits vesicular mode of reproduction has not been detected.Gen. LXXV. HYDRA.— Free, tentacula terminal, and disposedin a circle, and furnished with suckers.* Inhabitingfresh water.207- H. viridis.— Body linear, tentacula from six to twelve,about the lengthof the body.Polype verd, Trembley, Mem. 22, t. i. f. 1.— H. vir. and H. grisea, Linn.Syst. i. 1320. Ellis, Cor. t. xxviii. f. C.—Common on aquatic plantsin shallow slow running streams.