58 PROF. F. J. BELL ON NEW [Feb. 20, 



the Strix, and perhaps by Monarcha nitidus being present (as in the 

 Aroo Islands) instead of M. chaJybeocephalus. 



That the Tenimber group would possess a certain number of 

 peculiar endemic forms was also to be expected, from their isolated 

 situation and the deep channel around them. Altogether these are 

 17 in number, namely the 15 species above described as new, and 

 two Parrots {Eos reticulata and Eclectus riedeli) previously known. 

 To these must be added probably a " White Cockatoo " spoken of 

 by Mr. Forbes in his report, but of which no specimen is in the 

 collection. This species is in all probability Cacatua citrinocristata, 

 well known as a cage-bird, but of which the true " habitat " has 

 never been positively ascertained, though it has always been suspected 

 to be from the Tenimber Islands ^ 



3. Studies in the Holotliuroidea. — II. Descriptions of new 

 Species. By P. Jeffrey Bell, M.A., Sec. R.M.S., 

 F.Z.S., Professor of Comparative Anatomy in King's 

 College. 



[Eeceived February 19, 1883.] 

 (Plate XV.) 



A survey of the British-Museum collection of Holothuroidea reveals 

 the presence of a number of forms which have never yet been sub- 

 jected to systematic examination or description. 



It may be convenient, now that they are about to find a new home, 

 to provide them, or some of them, with definite names, wherewith 

 to enter the " Spirit-room " at South Kensington. 



Caudina meridionalis. (Plate XV. fig. 1.) 



It is interesting to find a third species of this curious genus so 

 soon after the description by Marenzeller of C. ransonnetti from the 

 Yellow Sea. 



" Body" tending to be square ; " tail" quite as long as or longer 

 than the body. When the tentacles are retracted, the anterior end 

 is blunter and squarer than in C. arenata. No sign of any genital 

 papilla; but this may be due to the extreme corrugation of both the 

 examples. The aboral prolongations of the radial pieces of the 

 buccal skeleton are longer and narrower than in either of the already 

 described species, and the intermediate cleft is consequently of con- 

 siderable extent. The sides of the radial pieces are not deeply ex- 

 cavated as in G. ransonnetti. Connected with the ring are a number 

 of long free ampullse ; it was not possible to make out the characters 

 either of the Polian vesicles or of the tentacles. 



The calcareous bodies in the integument are very different to 

 those of G. arenata, the surface view presenting us with a kind of 

 ' Cf. Wallace, P. Z. S. 1864, p. 280. 



