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THE VOYAGE OF H.M.S. CHALLENGER 



plates, may also be added as differential characters of primary importance ; and further, 

 as a secondary character, the disposition of the pedicellarise is worthy of attention. 



The intermediate character of Odinia, from a morphological point of view, between 

 Labidiaster on the one hand and Brisinga and Freyella on the other, is striking and 

 highly remarkable. 



The species of Odinia described by Perrier were all dredged off the coast of Morocco. 

 The species now described from the Faeroe Channel appears to have been confounded by 

 Sir Wy ville Thomson with Brisinga coronata, and was one of the first deep-sea novelties 

 dredged by the "Lightning" in 1868. 



Chorology of the Genus Odinia. 



a. Geographical distribution : — 



Atlantic : Four species between the parallels of 20° and 65° N. 



Odinia pandina, from the Faeroe Channel. Odinia semi- 

 eoronata, Odinia robusta, and Odinia elegans, off the coast of 

 Morocco. 

 /S. Bathymetrical range: 440 to 784 fathoms, 

 y. Nature of the Sea-bottom : Unknown. 



Cliorological Synopsis of the Species. 



1. Odinia p>andina, n. sp. (PI. CIX. figs. 1-5). 



Brisinga coronata (pars), Wyville Thomson, 1873, The Depths of the Sea, p. 66, fig. 5. 



Pays thirteen to eighteen. R = 215 mm. ; ?•= 14 to 15 mm. P = 15 r approxi- 

 mately. Breadth of a ray at the base, 6'5 mm. ; at the widest part of the ovarial expan- 

 sion, 12 to 13 mm. ; midway along the ray, about 7'5 mm. 



Rays very elongate and comparatively robust for the family, narrow at the base, but 

 swelling gradually and quickly into a large ovarial inflation, the tumidity of which is 

 greater abactinally than laterally, and tapers off rather abruptly, terminating at about 48 



