808 REPORT—1868, 
marks. JZ. canthariformis, Busk, seems to be nothing else than this 
species with the cells a little more erect than usual. 
Lepralia pertusa (Esper). On shells, especially Ditrupe, and stones, 40-100 
fathoms. 
labrosa, Busk. Scarce, 40 fathoms. 
—— simplex, Johust. ‘45 fathoms, Haddock-ground, Unst, Peach, 1864” 
( fide Alder in litt.). 
—— Malusii (Audouin), Tide-marks to 50 fathoms. 
—— minuta, n. sp. Cells minute, arranged in remarkably regular lines, 
diverging from a centre; the parts about the mouth raised in a pustular 
manner; mouth horseshoe-shaped, the central portion of the lower lip 
encroaching on the aperture, sometimes in a rounded, at others in a 
more denticulate and bifid form; surface granulated, margins between 
cells areolated; ovicells subimmersed, granular, imperforate. ~ In very 
small roundish patches on stone. Shetland, very rare, and Guernsey 
(A. M.N.); Wick (Mr. Peach). 
— tubulosa, n.sp. Cells shortly ovate, hyaline, smooth, glistening, punc- 
tate; mouth produced into a very long tube, which stands upright from 
the polyzoary, aperture round, peristome thin and simple; on the cell 
just below the origin of the tube a conspicuous pore. A remarkable 
form, wholly unlike any other species; found on a stone dredged in a 
few fathoms water at Hillswick. 
monodon, Busk, Quart. Journ. Mic. Sci. N.S. vol. vii. (1860) p. 213, 
pl. xxix. figs. 3,4. Common, in 80-170 fathoms. 
—— granifera, Johnst. Underside of stones, tide-marks. 
Celleporella hyalina (Linn.), Gray, List of British Radiated Animals in Brit. 
Mus. pp. 128 & 149. On rocks and weeds. 
lepralioides, Norman, Quart. Journ. Mic. Sci. vol. vill. (1868) p. 222, 
pl. vil. figs. 4, 5. On stones, 80-140 fathoms. 
—— pygmea,n.sp. Cells cylindrical, semierect, immersed through a con- 
siderable part of their height; peristome raised, simple, unattached all 
round, more elevated at the sides of the cylindrical aperture ; surface 
nearly smooth and imperforate. Ovicells galeate, depressed in front, 
imperforate. No avicularia. A minute species, presenting very little 
character, but manifestly distinct from its allies. Occurs in little round 
patches, which are seldom more than a tenth of an inch in diameter ; 
the largest patch seen not a fifth of an inch; on stones from very deep 
water, in 80-170 fathoms, where it is not uncommon. 
Cellepora pumicosa, Linn. 
avicularia, Hincks, Cat. Zooph. Devon and Cornwall, p. 48, pl. xii. fig. 6. 
In “ nodulous rolls” on Tubularia, Sertularie, &e. 
Hassall (Johnst.). Rocks, and roots of Laminarie, 
ramulosa, Linn. 40-170 fathoms. 
dichotoma, Hincks, Cat. Zooph. Devon and Cornwall, p. 49, pl. xii. 
figs. 7,8; Alder, Quart. Journ. Mic. Sci. vol. iv. (1864) p. 96, pl. ii. 
figs. 2-4. Living attached to Sertularian Hydrozoa, in 40—70 fathoms. 
attenuata, Alder, Quart. Journ. Mic. Sci. vol. iv. p. 97 (1864), pl. i. 
figs. 5-8. Local, 80-110 fathoms, 20-25 miles N.N.E. of Unst. 
cervicorms (Ellis and Sol.). 40-170 fathoms. The Shetland forms are 
much less massive than that of the Deyon and Cornish coast. Some- 
times they are a great deal branched, the branches interlacing and 
crossing each other in all directions, and more or less flattened. A rarer 
form has but few branches, and those very long, simple (7. ¢. not dicho- 
