L58 SOLEN. RAZOR-SHELL. 



peringto along neck on the upper part, with six longitu- 

 dinal ribs placed at equal distances, and a small knob at 

 the base : length not the tenth of an inch. 

 In fine sand. v. m. 



27. Serpula squamosa. Wicker-bottle Creeper. 

 Montagu, pi. 14. f. 2. 



Shell white, globular, marked with transverse undulate 

 lines like the scales of a fish, or a bottle covered with 

 wicker-work : mouth a little produced : length half a line. 



In fine sand. v. m. 



28. Serpula Retorta. Retort Creeper. 

 Walker, f. 10. 



Shell white, opake, globular, but often compressed with 

 a depression on each side near the centre, and a long nearly 

 cylindrical neck which is curved back : length half a line. 



In fine sand. 



29. Serpula Urnse. Urn Creeper. Fig. 21. 

 Montagu, pi. 14. f. 1. 



Shell glossy white, semitransparent, smooth, somewhat 

 globular, but sloping rather suddenly like an urn into a 

 short conic neck, with a slender appendage or knob at the 

 base : length hardly a line. v. m. 



In fine sand.x v. m. 



> ' 



SOLEN. RAZOR-SHELL. 



Shell with two valves, oblong, open at both 

 ends : hinge with a reflected subulate tooth or two, 

 not inserted into a groove in the opposite valve, 



A. With the hinge at one end, 1 to 6. 



B. With the hinge nearly central, 7 to 13. 



1. Solen Siliqua. Pod Razor-shell 



Lister, pi. 409. f. 255 Pennant, pi. 48. f. 1 Da Costa, 

 pi. 17. f. 5 Donovan, pi. 46 Wood, pi. 26. f. 1, 2 Dor- 

 set Cat. pi. 2. f. 5 Linn. Trans, vi. pi. 14. f. 10. 



Shell straight, slender, a little obliquely sloping at one 



end 



