Lucernaria. 
radiata. acalepha. 
499 
inches, the body consists of two cylindrical portions, of different dimensions, 
smooth, pellucid, yellowish ; a few longitudinal white streaks under the skin ; 
oral disc not expanded, surrounded with about 18 filiform tentacula in two 
alternate rows. 
47. “ A. anemonoides . — Nearly cylindrical, rather short, red ; 
interior tentacula ramified, outer ones conic, obtuse. 
“ E-ocky coasts, Shaw^ Nat. Misc. t. xxvi. 27. 
“ Body with a triple concentric row of tentacula, of a yellow colour, varied 
with red ; stomach pale yellov, with red and pale sea-green stripes.” — Turt. 
Brit. Fauna, 131. 
48. A. caryopJiyllus. — Red-brown, with small pencil-form- 
ed tentacula. 
“ Martin's Marine ¥7’orms, i. 1. t. i. f. \."-^Turt. Brit. Fauna, 131. 
Gen. XVII. MAMMARIA. — -Body smooth, mouth termi- 
nal without tentacula. 
49. M. mamilla. — Conical, ventricose, and white. 
Mull. Prod. Zool. Dan. 224. Jameson.^ Wern. Mem. i. 557. — On fuci, 
Leith shore. Professor Jameson ; Belfast, Mr Templeton. 
Gen. XVIII. LUCERNARIA.— Body narrow towards the 
adhering extremity, expanding into an oral disc which is 
divided into lobes bearing the tentacula. 
50. L. auricula . — Peduncle of the body short, tufts of ten- 
tacula equidistant, with one intervening oval vesicle. 
Fab. Fauna Groen. 341. Mull. Zool. Dan. t. clii. Mont. Linn. Trans, 
ix. 113. t. vii. f. 5. Lamourmx.^ Mem. No. iiL— Adheres to fuci, near 
low- water mark, on different parts of the coast. 
Body brownish, the portion next the adhering extremity cylindrical, short, 
terminating in a bell-shaped, wide, concave, oral disc, divided into eight 
lobes, each terminating in a tuft of short clavate tentacula. 
51. 'Ll. Jascicularis . — Peduncle of the body produced ; tuft 
of tentacula in pairs, about a hundred in each. 
Flem. Wern. Mem. ii. 248. t. xviii. f. 1, 2. Lammroux^ Mem. No. i. — . 
On the broad leaves of fuci, Zetland. 
Colour dark brown ; peduncle cylindrical, flexuous, wrinkled, with a nar-i 
row base ; body bell-shaped, subquadrangular, concave ; margin divided into 
four pairs of arms, concave within ; mouth central, tubular, consisting of a 
loose membrane, four notched at the tip, and also expanded circular or striat- 
ed at the pleasure of the animal, the inside with numerous white filaments. 
