ECHINODERMA. 3 



very considerable difference in size. As there is but a single specimen, I thought 

 the question whether or no it is hermaphrodite might be left over for the present. 



The only suggestion that I have to make is that Prof Lud wig's definition of the 

 genus (op. eit., p. 50) should be altered by the omission of the words " Sehr wenigen," 

 as applied to the dorsal " Fiisschen." 



As the type of the genus came from Macquarie Island, the two are not widely 

 separated ; no information is given as to the depth of the more northern species ; the 

 Antarctic form was taken at 20 fms., while at Winter Quarters. 



Thyone sp. 

 A young specimen was taken off Cape Adare. 



MeSOTHURIA MAGELLAN!. 



Holotliuria magellani, Ludwig, Ber. Oberhess. Ges. xxii. (1883), p. 175. 



Mesothuria magellani, Oestergren, Festskrift for Lilljeborg (1896), p. 350 ; Ludwig, Ergebn. Hamburg. 

 Sammelreise Holothur. (1898), p. 8. 



Two much-injured specimens are assigned to this species ; I was unable to find 

 spicules, but I do not always expect to find specimens taken out of ice-cold water and 

 from 100 fms. equal to the best products of the laboratories of Naples or Plymouth. 



Coulman Island, 100 fms. 



B.-ACTINOGONIDIATA . 



11. CEINOIDEA. 



comatulidae. 

 Promachocrinus kerguelenensis. 

 (Plate I.) 

 Fromachocrims hergmlensis, P. H. Carpenter, Proc. Roy. See. xxviii. (1879), p. 385. 



This is certainly one of the most interesting finds of the ' Discovery,' for the genus 

 was, till the German South Polar Expedition brought back specimens, only known from 

 the collections of the ' Challenger,' which found two species in the Southern Seas, and 

 one a few degrees north of the Equator. The only addition to our knowledge since 

 Dr. Carpenter's report has been the note by Dr. Minckert of Greifswald,* while Dr. 

 Bather has suggested that it may be a " permanent meristic variation."! I give a figure 



* Zool. Anzeig. xxviii. (1905), p. 490. 

 t Treatise on Zoology iii. (1900), p. 195. 



