LKPETA-riLIDIUM. 71 



themselves; they are closely, finely granulose. Interior polished, 

 orange reddish, rarely white. 



Length 4-7, breadth 3-3, alt. 2 to 2-2 mill. 



Coast of Scotland and Ireland ; Scandanavia, 5 to 100 fms. 



Patella fulva Muller, Prodr. Faun. Dan., p. 227. — Pilidium 

 /w^vM«iFoRKES,Athen?eum,1849,p.l018. — Forbes &Hanley, Hist. 

 Brit. Moll, ii, p. 441, t. 62, f. 6, 7 ; pi. AA, f. 3.— Dale, Amer. Journ. 

 Conch. V, p. 147, 1869, t. 15, f. 4, 4a; Proc. U. S. Nat. Mus. i, p. 

 335. — Tect^ira fulva Jeffr., Brit. Conch, iii, p. 250. — Scntellina fulva 

 Sars, Moll. Reg. Arct. Norv., p. 122, t. II, f. 12 (dentition).— Pa^e/^a 

 forbesii J. Smith, Mem. Werner Soc. viii, p. 107, t. 2, f. 3. — Brown, 

 111. Conch. Gt. Br., t. 57, f. 3, A.—Iothia fulva Gray, figs. Moll. An., 

 p. 93, 1854. 



May be known by its small reddish or dark colored shell, anterior 

 apex and fine beaded radiating riblets. Patella rubella Fab. has 

 has been referred here as a synonym, but it is a species of Acmcea. 

 L. coppingeri E. a. Smith. PI. 39, figs. 20, 21. 



Shell cap shaped, thin, sculptured with numerous fine, thread-like, 

 granulous lirse radiating from the apex to the margin, and with fine 

 concentric lines of growth. The color is dirty white, varied with 

 two or three bands of a pale slate-color which encircle the shell at 

 irregular intervals, and are interrupted by the radiating lirse, which 

 are white. This feature is more apparent within the shell, where 

 the surface is very smooth and shining. Margin nearly simple, very 

 crenulated by the extremities of the ridges, roundly ovate in form. 

 Apex rather acute, not greatly curved down, and very near the an- 

 terior end. Length 5J mill., diam. 43, height 2h. {Smith.) 



Sandy Point, Eastern part of the Sts. of Magellan, Patagonia, 9-10 

 fms. 



Tectura (Pilidium) coppingeri Smith, P. Z. S. 1881, p. 35, t. 4, f. 

 12, 12a. 



This is the southern representative of the northern Tectura 

 (Pilidiiim) fulva of MiiWer. It is rather more circular than the 

 latter ; and the color of the single specimen at hand is different. 

 (Smith.) 

 L. EMARGINULOIDES Philippi. Uiifigured. 



Shell minute, elliptical, rather depressed, white, thin ; vertex 

 nearly marginal ; having about 30-36 scaly ribs ; margin subdentate. 



Length If, breadth U, lines. (Ph.) 



Magellan. 



