ANNELIDES. 
479 
Dentalium entalis. —The Tooth Dentalium. 
Plate XCII. fig. 26. 
White or yellowish, slightly curved, smooth and tapering to 
a fine point. One and a half inch long. Inhabits the British 
seas. 
Genus 11.—B ROC HUS.— Brown. 
Generic Character. —Animal unknown. — Shell tapering, cylin¬ 
drical, sub-arcuated, imperforate at the smaller end; aperture 
orbicular placed at the large end. 
Brochus trcecheiformis. — The Tr^echeiform Brochus. 
Plate XCII. fig. 25. 
Brown, regularly furrowed transversely. Fourth of an inch 
long. Inhabits the British seas. 
Genus 12. — CORNUOIDES.— Brown. 
Generic Character. — Animal unknown—Shell cylindrical, 
tapering, the smaller end spiral. 
Cornuoides major — The Greater Cornuoides. 
Plate XCII. fig. 23. 
White, smooth, and semitransparent. Length scarcely a line. 
Inhabits the sea at Sandwich. 
Genus 13. — CLYMENE.— Lamarck. 
Generic Character. —Body tubular, slender, and cylindrical, 
with a series of setiferous papillae on either side; anterior ex¬ 
tremity retuse, oblique, having a semicircular margin, protruding 
beyond the mouth ; destitute of tentacula ; posterior extremity 
dilated, orbicularly expanded, in a funnel shape; the margin 
with equally slit dentations. Tube slender, open at both ex¬ 
tremities and incrusted exteriorly with grains of sand and frag¬ 
ments of shells. 
TPiIBE IV.-DORSALIiE. 
With branchiae placed on the back, or disposed longitudinally 
along the body. 
