Natural IJisiorij of East Finmark. 414 



Genus Synapta, Esclisclioltz. 



St/napta Bush, M'Intosli. 



1804. Si/napfa fenera, Xornian, Brit. Assoc. Rep. for 1863, p. 106. 



1860. Si/iiajjta Buski, M'lutosb, Proc. Itoy. Soc. Edinb. p. Oil, wood- 

 cut 6. 



1871. Synapta tenera, Brady Sc Eobertson, Proc. Zool. Soc. p. 690, 

 pi. Ixxi. li!?s. 1-3. 



1892. Si/j)apta Buski, F. Jeffrey P>oll, Cat. Brit. Ecliin. Brit. Mus. 

 p. 34, pi. i. tig. 3 (wrongly numbered in letterpress and on plate, 

 tig. 2). 



1898. LahidopJax Buski, Ostergren, " Das System den Synaptiden,' 

 (Efvers. K. Vet.-Akad. Eorhaud. p. 115. 



Ostergren, in his paper on "The Holothuroidea of 

 Northern Norway" (Bergens Museum Aarbog (1892) 1893, 

 p. 12), tells us that "The specimens of Synapta inhcerens 

 which Danielsscn and Koren (1882) mention from the Por- 

 sanger Fiord, long. 70° 54' N., have proved on my examina- 

 tion to be Labidoplax Buski," and also the specimens Avhich 

 Danielsseu (1861) recorded under the same name from 

 Vadso. 



Genus Chirodota, Eschscholtz. 



Chirodofa Icevis, Fabricius. (PI. XXVII. fig. 4.) 



1780. ILolothuria Icevis, Fabricius, Fauna Grrenlandica, p. 353. 



1806. JMothuria j^ellucida, Valil, in Midler, Zool. Dan. iv. p. 17, 

 pi. cxxxv. tig. 1. 



1857. Chirodota Iceve, Liitkeu, Oversigt over GriJnlands Ecbinodcnuata, 



p. 16, figs. 2-4. 

 1801. L'Idrodota pellucidu, M. Sars, Oversigt af Norges Ecliinodernier, 



p. 124, pis. xiv.-xvi. 



1807. Chirodota typica, Selenka, "Beit. z. Anat. und System, derllolo- 

 tliurien,'' Zeits. f. wiss. Zool. vol. xvii. p. 306, pi. xx. tigs. 126, 127. 



1807. Chirodota ticjeUnm, id. ibid. p. 366. 



1881. Chirodota hevis, Duncan & Sladen, ISlemoir on tlie Echinodcr- 



mata of tlie Arctic Sea to the AVeat of Greenland, p. 12, pi. i. 



iigs. 14-19. 



Dredged in tlie A^aranger Fiord in 125-150 fathoms ; and 

 also in Lang Fiord, within the narrows, in 5-30 fathoms. 



Its range extends from N.E. America and Labrador coast, 

 Greenland, and Spitsbergen, to the Murmau coast and Kara 

 Sea. 



The illustrations in M. Sars's work of this species are 

 extremely good ; nevertheless, if the wheel-deposits as figured 

 by him be compared with the figure given l)y Duncan and 

 Sladeu, I think it will be conceded that, if corresponding 

 wheels were found in a fossil state, or had such apparently 



