6I2 
WORMS. TESTACEA. 88. Sabella. 
Sahuhfa, Shell cylindricalj clofed zt the tip, fubc]a.va,te^ perforatf**’ 
conjpoled of larger grains of fand. 
Schrcct'. Jiufconch. tab. 1 1 . jnin. D. Jig, 4. 
Inhabits ihuringia and Belgium ; not an inch long. 
Shell llraight, or a little infletted in the middle, cinereous ^ 
black, or cinereous above and black beneath. 
Vegetabilis. Shell depreffed, compofed of fragments of twigs Items 
bark, and broken pieces of the Tellina cornea. 
Schroet.Jlufconch'. tab. ji. min. C.Jg. g. 
Inhabits waters of Thuringia; an incD long. 
Arnmeniata Shell polygono-cylindrical^ within fmooth, compofed 
fragments of the Cornu arnmonis. 
Inhabits rivers. Seurat. Jhifconch. tab. 1 1 . C. Jig. l o. 
Ihlicina. Shell round, within fmooth, compofed of fragments of 
Helix pulilla. ’ ’ 
Schratf. Jujconch. tab. 1 1. C. min. hg, 1 1. 
Inhabits ilagnant waters of Thuringia ; an inch long. 
Dimidiata. One part of the fliell compofed of fand or gravel, the othc^ 
thicker, clavate and compofed of fragments of fliells* 
Schreet . fliijconch. tab. 1 1. fig. 3. D. 
Inhabits waters of Thuringia, 
Fixat 
Cla-vafa. 
Corticalis, 
Shell compofed of fmall hones, tapering towards the tip' 
Schrasi.fiufconch. tab. II. min- C. fig. 12. 
Inhabits Thuringia, affixed to Hones in the water; an inch 1 ° e 
gregarious, open at the fide by which it is fixed. 
Shell compofed of fmall hones, the open end clavate 
confining of larger hones. 
Schroei. fiujconch. tab. ii. min.'D.fig. z. 
Inhabits Thuringia : folitary. 
an'* 
Shell compofcciof pieces qf bark, towards the end of brok^'’ 
hems. 
Schroei. fiujconch. fab. 1 1 . min. ;• 
Inhabits rivers of Thuringia, in numerous varieties. 
Arundfia- Shell fubconic, open at both ends, compofed of frag®^?' 
of the bark of reeds placed on each other. 
Schroet, fiuficotfch. tab. I i, min. D.fig 6. 
Inhabits Thuringia : about an inch long. 
Aculeata. Shell roiindilh, compofed of fmall twigs and the culh^® 
grades the prrinis of which project a little, 
