St. Andreios Mar me Laboratory. 103 



are figured in the "" Researclies " "^ bj Prof. Prince, tlie latter 

 being recognized by the position of the oil-globule in the 

 yolk after hatching, viz. considerably in front of the poste- 

 rior border of the yolk-sac, wiiich, moreover, is finely reticu- 

 lated, and by the yellowish coloration. A preanal portion of 

 the marginal fin is present. 



The eggs of the brill, which have a diameter of 1'33 

 millira., were recognized by Raffacle f, and subsequently at 

 St. Andrews, where tliey were for tlie first time liatched, and the 

 larva figured and described \. As, however, the ova had been 

 fertilized with the milt of a turbot, since no male brill could 

 be procured on the occasion, some uncertainty was expressed 

 as to the condition under ordinary circumstances. Further 

 experience this season has shown that the description and 

 figures are fairly reliable for the species. Both tlie turbot 

 and the brill have a smaller oil-globule than the sail-fluke 

 [Arnoglossus megastoma). 



3. On Clymene ebiensis, Aud. ^ Ed. 



In the edition of the ' R?igne Animal ' by the disciples 

 of Cuvier, Audouin and Milne-Edwards introduced as the 

 type of the * Clira^nes,' Savigny (an abranchiate setigerous 

 group which they associated with the Lumbrici), and for the 

 accompanying illustrations on pi. xxii., a new form which 

 they termed Clymene ehiensis. No description further than 

 the explanation of the six figures and a footnote is given, but 

 there is sufficient to recognize the form. It was found by the 

 authors " a I'ile des Ebiens " on the shores of Brittany, and 

 is characterized by the pyramidal form of the cephalic seg- 

 ment and the absence of cirri on the anal funnel. In 

 the plate the annelid with its tube of the natural size, two 

 views, dorsal and ventral, of the cephalic lobe, and a figure of 

 the posterior end of the body are given, besides four of the 

 hooks magnified. The cephalic region is diagnostic, but the 

 posterior end, or, as it is called, the " Extremite anale," 

 represents only the ruptured constricted region between the 

 two preanal bristled segments, while the figure of the hooks 

 is scarcely diagrammatic. The tube is evidently of sand- 

 grains cemented together. 



In his ' Familien der Anneliden ' § Grube characterizes 



* Trans. R. S. E. oUm cit. pi. v. fig. 4, and pi. xvii. fig. 4. 

 t "Le nova Galleggianti, &c.," Mitth. Zool. Stat. Nap. viii. p. 48, 

 tav. 4. figs. 8 &c. 



X 9th Ann. lleport S. F. B. p. 317, pi. xiii. figs. 1-3. 

 « P. 157. 



