History of British animals - University of Guam Marine Laboratory

Hawmeda. ZOOPHYTA. CORALLINADJC. 51581. C squamata.— The short lateral shoots of the branchescompressed, and two-edged.Cor. anglica erecta, ramulis dense'pennatis, lanceolae forma terminantibus,segmentis ad utrinque latus paululum compressis, Ellis, Cor. p. 49.No. 4. lab. xxiv. f. c. C— English shores.This speciesis considered both by Pallas and Linnaeus as a variety of thepreceding.Gen. XXXVI. HALIMEDA.— Joints compressed, crowded.82. H. Opuntia.— Branches trichotomously divided, the jointswaved on the margin, and kidney-shaped.Cor. op. Ellis, Cor. p. 53. tab. xxv. fig.a. A. b. B. and Zooph. p. 110.tab. xx. f. 6.This species has not hitherto been recorded as a British zoophyte, but issaid to inhabit the Atlantic and Mediterranean. I, however, possess a specimen,formerly belonging to the late Di Walker, to which the following notewas annexed, in his own "handwriting Submarine :plant from the rocks atSalterness, in Kirkbane. An Bombycina? It covers the rocks with a closeturf." It thus appears to be a native of the shores of the Solway Frith.When a joint was macerated in weak acid, the branched tubes supporting thepolypi appeared as they are represented by Ellis, ib. tab. xxv. f. A. 1.Gen. ISIS.— Axis branched, striated, articulated ; the fleshycrust deciduous after death.1. Remains of an Isis " found at Calne, in Wiltshire, in a light yellow colouredlimestone."— Park. Org. Rem. ii. 73.Gen. XXXVII. LOBULARIA— Internally carneous,withreticulated cartilaginous fibres, and distinct converging cells,opening by stellate poresthe base where ; it is attached isbroad and compact ;the polypi have a single opening, and8 pinnatedtentacula.83. L. digitata.Dead-manVhand.— Polypi with thin pinnated,pointed, tentacula.Alcyonium ramoso-digitatum molle asteriscis undequaque ornatum.—Ray. Syn. p. 31. Ellis, Cor. 83. t. xxxii. a. A. A 2. Phil. Trans, liii.p. 431. t. xx. f. 10-13—A. digitatum, Linn. Syst. i. 1294. Sol. Zooph.175. t. i. f. 7— F. lobatum, Pallas, El. 351 Common in the Britishseas, adhering to shells, rocks, and fuci.The figure is bluntly ovate, especially when young, dividing with age intoshort rounded lobes, varying from a reddish-orange to a greyish-white ; thepores are stellate and prominent the cells are ; inversely conical. The polypi,according to Ellis, when exserted, are conico-tubular, with 8 ridges ; these,I have observed to be armed near the summit, on each side, with a row ofdiverging spicula, like the particles composing the crust of the Gorgonia ver~rucosa, Ellis, Cor. t. xxvii. No. i. A. 3. The tentacula are depressed, broadestat the base, and terminate in a point; the pinnulae, are opposite at first, butkIc 2