6x2 



WORMS. TESTACEA. 88. Sabella. 



$abukfa> Shcjl cylindrical, clofed at the tip, fubclavate, perforated, 

 compofed of larger grains of fand. 

 Schrcet.fiuf conch, tab. 1 1. "mini D. jig. 4, 

 Inhabits 7 huringia and Belgium; not an inch long. 

 .S/W/iUaight, or a little inflected in the middle, cinereous or 

 black, or cinereous above and black beneath. ' 



Vegetabilis. Shell deprefled, compofed of fragments pi twigs f terns and 

 bark, and broken pieces of the Tellina cornea. 

 Scbrcet.jliifconcb tab. 11. min. Cfg. 9. 

 Inhabits waters of Thuringia ; an incn long. 



Ammoniata Shell polygono-cylindrical, within fmooth, compofed of 

 fragments of the Cornu ammonis. 

 Inhabits rivers. Scbrazt. fnfconch,tab. n.Q.fig, 10. 



He/icma. Shell round, within fmooth, compofed of fragments of the 

 Helix pulilla. 

 Schrcet. flu/conch, tab. 1 ! . C. min. fig. II. 

 Inhabits rtagnant waters of Thuringia ; an inch long. 



Djmidiata. Qne part of the (hell compofed of fand or gravel, the other 

 thicker, clavate and compofed of fragments of fhells. ' 

 Schr at. fiuf conch, tab. l 1 . fig. 3. I). 

 Inhabits waters of yhuringia* 



Fixa. ghell compofed of fmall (lones, tapering towards the tip# 



Sch~ae(,Jiuj conch, tab. 1 1. min. Q*fig* 12. 



Inhabits Thuringia, affixed to Hones in the water: an inch long, 

 gregarious, open at the fide by which it is fixed. 



Clavata. Shell compofed of fmall {lones, the open end clavate and 

 confifting of larger ftohes. 

 Schroet.fiujconch. tab. II. min. D. Jig. Z* 



Inhabits Thuringia : folitaryy* 



Cortkalis. Shell compofed of pieces of bark, towards the end of broken 

 ftems. 



Schroet. Jlufconch. tab, 1 1 . min. D. Jig. 5 , 



Inhabits rivers of Thuringia, in numerous varieties. 



Arundina- Shell fubconic, open at both ends, compofed of fragments 

 cea " of the bark of reeds placed on each other. 



Schroet.fiujconch. tab. 1 1, min. D.fig. 6. 

 It! habits 7 huringia : about an inch long* 



Acukata. Shell roimdifh, compofed of fmall twigs and the culms of 

 graffes the points of which project a little. 



Schroet, 



