Fam. 1, Plate 15. 

 DORIS PILOSA, Muller. 



D. convexa, subpellucida, lutea, alba, vel fusca; pallio papillis gracilibus obtecto; tentaculis longis, 

 subcurvatis, vaginis parvis denticulatis ; branchiis 7 — 9, raagnis, effusis, tripinnatis, non retractilibus, 

 astrum medio simulantibus. 



Het Eegeltje of de Zeeslak met eene ster op de stuit, Bomme, in Act. Vlessing., v. 3, p. 298, f. 4. 

 Doris pilosa, Mull., Zool. Dan., v. 3, p. 7, pi. 85, f. 5 — 8. 

 Gmel., Syst. Nat., v. i, p. 3106. 

 Cuv., in Ann. du Mus., v. 4, p. 470. 

 Lam., Anim. sans Vert., 2d ed., v. 7, p. 464. 

 Johns., in Ann. Nat. Hist., v. 1, p. 54, pi. 2, f. 9, 10. 

 Tliomp., in Ann. Nat. Hist., v. 5, p. 86. 

 stellata, Gmel., Syst. Nat., v. 1, p. 3107. 



Cuv., in Ann. du Mus., v. 4, p. 470. 

 nigricans, Mem., in Edin. Encyc., v. 14, p. 618. Brit. Anim., p. 283. 



Johns., in Ann. Nat. Hist., v. 1, p. 55. 

 Flemingii, Forbes, Mai. Mon., p. 3, pi. 1, f. 2, 3. 

 sublcevis, Thomp., in Ann. Nat. Hist., v. 5, p. 87, pi. 2, f. 1. 

 similis, Aid. and Hanc., in Ann. Nat. Hist., v. 9, p. 32. 

 fusca, Lov., Ind. Moll. Scand., p. 4. 

 Hab. In shallowish water and within tide-marks, common. 



Body varying in size from half an inch to nearly an inch and a quarter, ovate, very 

 convex, and semitransparent. The colour is very various, ranging from pure white to yellowish 

 white, canary yellow, yellowish brown, gray (produced by a freckling of the surface), purple- 

 brown, and black. Cloak not extending much beyond the foot, containing few spicula, and 

 covered with soft, slender, conical, pointed papillae, which give it a pilose or tomentose 

 appearance. The underside of the cloak is veined with white, and, in the coloured varieties, 

 usually spotted. Dorsal tentacles long, linear, rather tapering, and bent slightly backwards 

 for about half their length : the upper part is yellowish, with nineteen or twenty delicate 

 laminae ; the under part smooth, colourless, and transparent. The tentacles issue from very 

 short, close, denticulated sheaths. Branchial plumes from seven to nine, large and spreading, 

 united at the base, but not retractile within a cavity : they are imperfectly tripinnate, and 

 have a rather broad midrib, on each side of which there is usually a broad, opaque white, 

 internal, nodulous line, extending about two thirds up the plume, and diverging at the base, 

 so as to form a star round the vent : this latter organ is also surrounded by small, pointed 

 tubercles. The plumes are very transparent, and nearly colourless, but vary in this respect ; 



