134 WORMS. MOLLUSC A 21. Nereis. 



mities, with the lateral margins deflected : feelers 2, besides 8 short- 

 ones furrounding the mouth : pedal-limb oval, oblong, with a flat 

 margin. 



76. D. bilamellata. Oval, covered with a rough punc- 



tured plate. 



Sea coasts, Brit. Zool. t. 24,/. 24. Barbutt. 4-/.2. 



Body the size of a fnail, abrubt in front, glabrous, above pale 

 brown with grey dots, beneath white : plate with fulphur dots 

 above, white beneath : feeler s brown: vent tranfverfe, furrounded 

 with 6 fulphur plumes. 



77. D.pinnatifida, Body elongated, pinnate down the 

 sides with conic clusters of ovate imbricate papillae. 



Montague Linn. Trans. 7. p. 78, t. 7>f. 2. 3. 



Body 3 lines long, green and rufous : front rounded : tentacula 2, 

 trumpet-shaped, ending in a retractile filiform appendage : clusters 

 opposite, consisting of 5 or 6" rows of imbricate ovate blue-grey 

 papilla tipt with hlack. 



78. D. c&rulea. Body elongated, covered with clavate 



simple vesicles placed in whorls. 



Montague Linn. Trans. 7. p. 78. t. 7./. 4. 5. 



Body a quarter of an inch long, green : feelers 4, fomewhat fili- 

 form : eyes at the bafe of the hinder feelers: tubercles blue, tipt 

 with orange, with 2 pink oval vefcicles on the back between the 

 fecond and third whorl. 



79. D.flqva* Body elongated, tapering to a point be- 

 hind : vent on the back, surrounded by 7 feathered 

 appendages, below which are 2 long simple fusiform 

 ones. 



Montague Linn. Trans, y.p. 79. t.y.f. 6. 



Body half an inch long, white with orange spots : feelers 4, long, 

 pointed, orange, with 2 erect wrinkled ones on the top of the 

 head : vent nearer the lower end. 



80. D. maculata. Body slender, tapering, with several 

 pairs of subclavate peduncles down the back lobed at 

 their tips. 



Montague Linn. Trans. 7. p. 80-*. 7. f. 8-9. 



Body 3 lines long, pale yellow fpeckled with pink : front obtufe • 

 feelers 2, trumpet-shaped, with a filiform appendage from the cen- 

 tre of each : peduncles mostly 4 pair, with a single one behind, 5 or 

 6-cleft at top. 



81. D.marginata. Body oval, surrounded with a thin 

 membranaceous undulate margin : front obtuse, ere* 

 nate. 



Montague Linn. Trans. 7. p. 79. t. 7./. 7. 



Body a quarter of an inch long and nearly as much broad, white 

 tinged with pink in the middle : feelers 2, wrinkled or slightly 

 feathered : vent furnished with feathered membranes. 



21. NEREIS. : 



52. N. noctiluca. Blue -green, invisible to the naked eye, 

 wi h 23 segments. 



The Ocean. Avian. Acad. 3. t. 3. Barbut tab. 4. /. 8. 



Body phofphorefcent, illuminating the fea by night, very minute 

 and agile, shining with a blue-green splendor. 



53. Ntpectinata* Smooth, prismatically coloured* with 



14 rich gold tentacula and legs each side. 



In the S/abella tubiformis. Sowerby Brit, Mi/ccf, t, $u 



