SYSTEMATIC AND BIOLOGICAL ACCOUNT 115 



The stalk of the somatocyst of a Mediterranean specimen measured 0-025 mm - m diameter. The 



passage of an oil droplet up this canal may distend it. The expanded gastrozooids of the same specimen 



measured o-6-o-8 mm. in length and 0-15 mm. in diameter. The diameter of the distal half, the 



proboscis, was only 0-08 mm. In one complete specimen there was a bud of a third nectophore. 



B C 



Text-fig. 57. Lensia subtilis, anterior nectophores. A, a series of six specimens from the Gulf of Aqaba, Red Sea, 'Manihine' 

 St. 17, x 21 ; B-D, specimens from 'Discovery II' St. 1587. Magnification: B x 21 ; C x 18; D x 11. 



Vei. 



Som. 



C pa 



Text-fig. 58. Lensia subtilis, anterior nectophores from Villefranche. A, B, C, three stages in contraction of the 



nectosac, x 12; D, basal view of a nectophore, x 19. 



In 1932 I reported that there was some doubt about the appearance of the eudoxids of this species. 

 It is very abundant at Villefranche and I give a figure now (Text-fig. 59). A useful field mark at 

 Villefranche for recognition of gonophores of this species is the yellow colour of the tip of the 

 manubrium. 



15-2 



