686 SIR C. ELIOT ON NUDIBRANCIIS [June 19, 



EoLis nussEYi Kelaart. (Plate XLV. %. 6.) 

 (Kelaart, 1. c. II. p. 490.) 



Thoiigla this species is described and figured with a distinctness 

 which will probably be sufiicient for recognition, it is not easy to 

 assign it to any definite genus. It may be a Cratena or Guthona. 

 Several Gratence, are recorded from the Indo-Pacific, and Guthona 

 hicolor from Japan. It is also not impossible that it may be a 

 Phestella, as the form of the head cannot be distinctly seen. 



EoLis NODULOSA Kelaart. (Plate XLV. fig. 7.) 

 (Kelaart, 1. c. II. p. 491.) 



This species will perhaps be recognised by the character of the 

 rhinophores. The plate, confirmed by the desciiption, represents 

 them as bearing three strong annulations, an unusually small 

 number. 



EoLis EFFULGENS Kelaart. (Plate XLIII, fig. 4.) 

 (Kelaart, 1. c. II. p. 491.) 



This is perhaps a Facelina. The rhinophores are perfoliate, 

 and a sketch of the lower surface (not reproduced) shows that the 

 front of the foot is produced into distinct tentacular processes. 

 The elongate shape of the body, large oral tentacles, and the 

 general arrangement of the cerata agiee with the generic characteis. 



The animal will probably be found again, as it is said to occur 

 in great numbers in Dutch Bay and other parts of the sea near 

 Fort Frederick. 



The dra.wings of Eolis jxndince. (PI. XLIII. fig. 6) and Eolis 

 trisiis (PI. XLIII. fig. 5), which are reproduced, will probably 

 enable any one Avho re-discovers the animals to recognise them, 

 but in the absence of further details it is useless to speculate on 

 their generic position. 



Stiltgee, ? viRiDis (Kelaart). (Plate XL VI. fig. 3.) 

 [Pterochilus viridis Kelaart, 1. c. II. p. 492.) 



PterocMlus is the original nnme of Umhietonia A. & H., dis- 

 carded because it was found to be already used in Entomology. 

 The present aninjal is more probably allied to StUiger. It can 

 hardly be Ercolanda zanzibarica Eliot (Proc. Zool. Soc. 1903, ii. 

 pp. 256-7), which has club-shaped cerata, though the coloration 

 is similar and both animals are found in seaweed. The " nume- 

 rous, long, linear, acutely pointed cerata" somewhat resemble 

 Trinchese's figure of Placida tardyi. 



It is diflicult to distinguish satisfactorily StUiger, Ercolania, 

 and Placida i^Laura). 



Phyllobranchus orientalis (Kelaart). 



(Kelaart, 1. c. II. p. 492. Alder & Hancock, 1. c. p. 145. 

 Of. Phyl. prasimos Bergh in Semper's Reisen, Heft ii. 

 pp. 52-87.) 

 Six specimens are preserved, much contracted and hardened, 



