SYSTEMATIC AND BIOLOGICAL ACCOUNT 



133 



Clausophyes Lens & van Riemsdijk, 1908 

 There appear to be two described species, ovata Keferstein & Ehlers, 1861 (figured), and galeata 

 (not galatea) L. & van R., 1908, well figured by Bigelow 1913. I have also seen material of what 

 appears to belong to a new species from 'Discovery II' Station 2084. Clausophyes has obvious 

 affinities with Chuniphyes. 



Clausophyes ovata (Keferstein & Ehlers), 1861. (Text -fig. 67.) 



Eudoxid. 'Discovery II' (Station 1567) took two anterior and one posterior nectophore, all in 

 very poor condition, in a haul from 1350 m. to the surface, together with an interesting though poorly 

 preserved bract of an eudoxid. This eudoxid bract has a rounded apex, and from the phyllocyst arise 

 a pair of bracteal canals. A free eudoxid of Clausophyes has never been described, and the stem 

 groups have been figured only by Keferstein & Ehlers (1861), when they first described the polygastric 

 stage. The presence of the pair of bracteal canals would seem to link this bract of a free eudoxid with 

 those of Keferstein & Ehlers's attached stem-groups of C. ovata. 



Chi 



2. mm 

 1 



Text-fig. 67. Clausophyes ovata. Bract of eudoxid. 'Discovery II' St. 1567, 1350-0 m., x 25. 



Material. 'Discovery II' has taken this species in twenty-three closing-nets so far examined, 

 at depths ranging from 3000-2000 to 310-260 m. It seems to be characteristic of the deeper water. 



My identification of ovata is based on the posterior nectophore which has a straight, not emarginate 

 basal edge to the mouth-plate. The left hydroecial fold fits into a notch at the basal end of the right- 

 hand fold. The notch is bounded on the inner side by a prominence which forms a good recognition 

 mark. 



In a new species from 'Discovery II ' Station 2084, whose description I am unable to complete at 

 the moment, the posterior nectophore is intermediate in size between the smaller ovata and the very 

 large galeata. The right-hand hydroecial fold has a very large flap midway along its length, which 

 I have never seen in ovata and galeata. 



