28 PEOF. A. DENDT ON THE 



esting, because the genus Chirodota is usually considered to be 

 characteristically hermaphrodite ; and this is, I believe, the first 

 species known to depart from tbe typical condition in this 

 respect. 



The species is evidently very closely related to C. ausfraliana, 

 StimpsoQ*. Theel, however, being unaware of the existence of 

 sigmoid spicules in C. dunedmensis, placed it in a different section 

 of tbe genus. As a matter of fact the Australian species seems to 

 be distinguished by little if anything more than the aggregation 

 of the spicules into two kinds of papillae. A comparison of the 

 two may even show them to be identical, but I do not think 

 this very likely. 



Theel observes that in the 'Challenger' specimens identified 

 by him with C. australiana, " the wheels and sigmoid bodies seem 

 to be present all over the body," and that the aggregation of the 

 spicules into papillae was not distinct. These specimens at any 

 rate are probably identical with the Dunedin species. The 

 record of locality in the ' Challenger ' Report seems to be some- 

 what doubtful, viz. " Habitat. Port William (Xew Zealand, 

 Falkland Islands ?) ; depth 5-10 fathoms ; two specimens." 



Ankyeoderma Mabenzelleri, Theel. 



Ankyi-oderma Maienzelleri, Theel, ' Challenger' Holothurioidea, p. 41, 

 pi. iii. fig. 1. 



This appears to be a deep-water species, and only a single incom- 

 plete specimen was obtained by the ' Challenger,' from a depth 

 of 700 I'athoms (Station 169). It has not since been met with. 



Caudina coriacea, Sutton. (PI. 3. figs. 9-18.) 



1872. Molpadia coriacea, Ifutton, Cat. N. Z. JEchinoderm. p. 17- 



18/9. Caudina (?), Echinosoma (?), Hutton, Trans. N. Z. Inst. vol. xi. 



p. 307. 



1883. Caudina meridionalis, Bell, Proc. Zool. Soc. Loud. p. 58, pi. xv. 



fig. 1. 



1886. Caudina coriacea, Theel, ' Challenger' Holothurioidea, pp. 47, 54, 



pi. iii. fig. 4. 



The original description runs as follows : — " Body cylindrical, 



tapering rather suddenly into au attenuated and tapering tail, 



which is half the length of the body; skin rough, coriaceous; 



body transversely wrinkled ; anterior end smooth ; mouth with 



from ten to twenty short, simple papillae ; teeth five, long, bifid ; 



longitudinal muscles with a deep central groove." 

 * Vide Theel, loo. cit. p. 16 &c. 



