SYSTEMATIC AND BIOLOGICAL ACCOUNT 119 



Using again the terminology that I employed in 1932 (p. 318) the headpiece of the bract would be 

 described as small, the phyllocyst comparatively small and near the apex. In optical section the head 

 and neck shield resemble those of Diphyes bojani. The sutural surface is in a groove. In fact the whole 

 bract has not evolved far beyond the developmental stage through which Diphyid eudoxid bracts 

 pass. The edges of the sutural surface tend to lap over one another as if lapping round the stem. 

 These ventral edges are cut away like the sides of a man's tail-coat till they meet the dorsal edge of 

 the bract. The tip of the bract is rounded and conical, and the sutural surface does not reach the apex. 

 The eudoxid, then, may be regarded as more primitive than that of a species such as D. dispar. 



Man 



o.sm/n 



Text-fig. 62. Eudoxia macra sp.n., a new eudoxid from 'Discovery II' St. 1588, 250-100 m., whose 

 complete polygastric stage is either unknown or has not been identified. C x 46. 



The eudoxid has one characteristic, namely the rounded, conical tip of the bract, that recalls the 

 apex of the anterior nectophore in Clausophyes ovata, and of the eudoxid figured (1 861) by Keferstein 

 & Ehlers. But Clausophyes is taken in much deeper water than this Eudoxia macra, and the eudoxid 

 of Clausophyes appears to have longitudinal bracteal canals. 



Gonophore. There are two dorso-lateral and two ventro-lateral radial canals, and two slight rounded 

 ridges overlie the dorso-lateral pair. There are two closely opposed hydroecial folds, one deeper than 

 the other. Distally these folds become less and less deep till they disappear as slight ridges before 

 reaching the level of the velum. Neither mouth-plate nor teeth are present. The proximal end of the 

 gonophore does not appear to articulate with the bract itself. It is sometimes rounded and shaped like 



