

47 205 



Farn. Tethymelibidae. 



Comp. R. Bergh. 1. c. 1897. p. 1039—1043. 



Melibe, Rang. 



Melibe, Rang. Man. — des moll. 1829. p. 129. pi. Ill, Fig. 3. 



— , R. Alder and Haxc, notice of nudibr. moll. Trans, zool. soc. of London. V, 3. 1864. p. 37. 



— , R. Bergh, malacolog. Unters. Heft. 9. 1875. p. 382— 386. Taf. XLV— XLVIll. 



— , Beitr. z. Kenntn. d. Japan. Nudibr. 1. Verb. d. k. k. zool. bot. Ges. in Wien. XXX. 1880 



p. 160-165, Taf. II, Fig. 1 — 11 ; Taf. Ill, Fig. 1—2. 



— , Beitr. z. Kenntn. d. Gatt. Melibe, Rang. Ztschr. f. wiss. Zool. XLI. 1884. p. 142—152. 



Taf. III. 



— — , Beitr. zur Kenntn. d. Aeolidiaden. IX. Verh. d. k. k. zool. bot. Ges. in Wien. XXXVIII. 



1888. p. 688—693. Taf. XVII, Fig. 13—14; Taf. XIX, Fig. 3—7. 

 Chioraera, Gould. Un. St Explor. e.xped. Moll. 1852. p. 309. Fig. 404. 



This so peculiarly and singularly looking animal has already in the infancy of 

 malacology (1829) been formulated as representing a generic group, but remained very long 

 (till 1864) misappreciated; it has, however, in the later decennaries several times been 

 subjected to examination. 



These animals which in some parts of the seas very likely will be found as fre- 

 quent as Tethys in the Mediterranean, belong only to the warmer and tropic seas. Con- 

 tinued examination is likely to reduce the number of the mentioned species, which are 

 the following: 



1. M. rosea, Rang. — M. capense. 



2. M. Rangii, Bgh. — M. rubrum. 



3. M. liinbriata, Ald. et Hanc. — M. indie. 



4. M. pilosa, Pease. — M. pacific. 



5. M. capucina, Bgh. — M. philipp. 



6. M. leonina (Gould). — M. pacific. 



7. ill. vexillifera, Bgh. — M. japon. 



8. M. papulosa (de Filippi). — M. japon. 



9. M. ocellata, Bgh. — M. indic. 



10. M. ? australis, Angas. — M. pacifie. 



M. bucephula, Bgh, n. sp. 

 PI. Ill, Figs. 6-10. 



One single specimen of this form was taken on Febr. 22 nd , 1900, not far from 

 Tung Kaben, on a bottom of mud mixed with sand, at a depth of 6 fathoms, creeping on 

 phanérogame plants (Halophila). 



