1880. J NATURAL SCIENCES OF PHILADELPHIA. 91 



Doris Imvis, Cuv. 



? Doris fv sea, O. F. Mull., Zool. Dan. (descr.).' 



? Doris tomentosa, Loven, Index Moll. 1846, p. 4. 



3. A. subquadrata (Aid. et Hanc). Oceanum Atlanticum. 



Doris subquadrata, A. et H. Monogr., Part. V, 1851, fam. 1, Plate 



10, f. 1-3 ; Part VII, 1855, p. 43, and III, PI. 46, Suppl. f. 14. 

 ? {D. stdlata, Cuv. ?). Lebert, Beob. iiber die Mundung einiger 

 Gasteropoden, J. Muller, Arch., 1846, p. 441-446, Taf. XII, fig. 

 10-13.^ 

 S. A. cmrulescens, Bgh., n. sp. Oceanum Pacificum. 



4. A, ornata, Verrill. Notice of recent additions to the mar. fauna of the 



eastern coast of North Amer. XXXVIII ; Amer. Journ. of Sc. and 

 Arts, XVI, 1878, p. 318. Oc. Atlant. 



5. A. siellata (Gm.), Verr., 1. c, p. 313, D. bifida, Verr. Oc. Atlant. 



6. A. citrina, Verr., 1. c, p. 313. Oc. Atlant. 



7. A. f mollicella, Abraham, 1. c, 1877, p. 228, PI. XXX, fig. 1-4. Oc. 



Pacincum. 



8. A. ? globosa, Abr., 1. c, 1877, p. 228, PI. XXX, fig. 5-9. Oc. Pacif. 



I. Acanthodoris pilosa (0. F. MUller). Plate X, fig. 12-15; Plate XI, fig. 1-2; 



Pl;.te XII; Plate XIII, fig. 2-5. 



Acanthodoris pilosa (O. F. Muller), Alder and Hancock. Monogr. Br. 

 Nudibr. Moll., Part V, 1851, fam. 1, Plate I, f. 1, 3-5, 12; Plate 2, 

 f. 2-6; Plate 15; Part VII, 1855, Plate 46; Supph Plate 48, f. 1. 



Doris pilosa (O. F. Miiller), Meyer und Moebius, Fauna der Kieler Bucht, 

 I, 1865, p. 63-67 c. tab.; taf. V, A. 



" Color pagin'cB superioris corporis albus vel luteus vel fuscus vel 

 griseus vel rubro-brunneus vel niger. 



Dentes radute barao pro parte denticulato. 



Hab. Oceanum Atlanticum septentr., Pacific, septentr. 



< Platyd. FMlippii, Bgh.). Cf. my Malacolog. Untersuch. (Semper, Philipp. 



II, ii.). Heft, xii, 1877, p. 507. 



' It is in most cases a quite useless task to try to elucidate the species of 

 Dorides of the elder authors ; their examinations vrere all too superficial 

 and their descriptions don't contain the data necessary for their verifica- 

 tion. The best way would be to wholly cancel these names {D. fusca, M.; 

 D, loRtis, L., etc.) which have given later authors so much trouble. On the 

 Doris fusca of O. Fabricius, Morch has even formed a genus Proctaporia 

 (Rink. Gronland. I, 1857. Tillag. 4, p. 78), that must be cancelled, too. 



* The short statements of Lebert about form and color of the animal 

 examined by him can scarcely entirely prohibit the identification of it with 

 the species described by Alder and Hancock. The figures of the (tongue) 

 teeth given by Lebert, rough as they are, suffice, on the other hand, to 

 secure the identification with the D. subquadrata, or at least with a nearly 

 related species. 



