JAPANESE NÜDIBRANCHS. 37 



Melibe papillosa de Filippi. 



See Bergh, Beitrag zur Kenntnis der Gattung Melibe in Ztsch. Wiss. Zool. Bd. xLi, 1885, 

 pp. 145-152. 



Two specimens from Ariake Bay, Hiuga and Kominato, 

 Awa, together with smaller ones which are less certainly refer- 

 able to the same species. The colour is greyish opaqne white, 

 mottled here and there (especially on the tubercles and processes) 

 wtih olive, inclining to black in places. There is a conspicuous 

 broad band of this colour round the hood and there is scattered 

 dark pigment in the oesophagus. There are five pairs of cerata 

 not deciduous and not set opposite each other. The jaws are 

 small and yellow : the stomach plates 21 in number and also 

 yellow. A "fan- shaped" organ is present in the genitalia. 



Melibe vexillifera ( ? ) Bgli. 



See Bergh in Verb. k.k. Zool.-Bot. Gesell. Wien. 1880, p. 162. 

 (Plate XI., fig. 11). 



Two small specimens for which no locality is given seem 

 referable to this species, though the shape of the cerata is not 

 as described by Bergh. That shape however was probably due 

 to distortion. The colour is yellowish white, with traces of brown 

 and the upper surface and sides are covered with small knobs 

 and tubercles. The oesophagus is white ; the jaws small with 

 indistinct denticles : the stomach plates large, greyish yellow and 

 only 14 in number. The liver is flocculent and extends into the 

 cerata. 



Pleurophyllldia japonica sp. nov. 



— P. compta var? 



For P. compta see Bergh Beiträge zur Kenntniss japanischen Nudibranchien in Verh. d. k. k . 

 Zool.-Bot. Ges. in Wien, 1880. pp. 173-176, 



(Plate II., fig. 12). 



Several specimens were found Aug. 7. 1904 on a muddy 

 bottom near Misaki and are accompanied by some notes as well 

 as by a coloured drawing. The notes state that in life the mantle 



