Fam. 3, Plate 29. 



Figs. 5 to 8. 

 EOLIS GLOTTENSIS, Alder and Hancock. 



E. gracilis, viridi-lutescens ; branchiis robustis, atro-viridibus, apicibus aureis, in seriebus 8-9 

 digestis ; tentaculis longis, obtusis ; augulis anterioribus pedis rotundatis. 

 Eolis Glottensis, Aid. and Hanc, in Ann. Nat. Hist., v. 18, p. 293. 



For. and Hani., Brit. Moll, v. 3, p. 601. 

 Hab. Dredged in Lamlash Bay, Arran, on Pecten opercularis, J. A. 



Body about four tenths of an inch in length, pale greenish-yellow ; not very slender. 

 Dorsal tentacles of the same colour as the body, transparent, with opaque white spots, rather 

 long, linear, smooth, a little thickened at the top, and approximating at the base. Oral 

 tentacles about two thirds the length of the dorsal pair, which they resemble in form and 

 colour. They are set on the upper side of the lip, and are generally held in a curved position. 

 Outline of the head semicircular. Branchice rather short and stout, the central gland of a 

 dark bottle-green approaching to black above, granulated, nearly filling the sheaths ; the apices 

 are deep orange or golden-yellow, with sometimes a narrow yellow ring below ; the extreme 

 tips are transparent and rather blunt. They are arranged in eight or nine rows on each 

 side of the back ; the three front rows very close together ; with a little space between them 

 and the fourth. There are four or five papillae in each row, excepting behind, where they 

 diminish to two, coming very near to the tail. Foot transparent yellowish-white, with a deep 

 notch in front, the angles slightly produced and rounded. It terminates posteriorly in a 

 blunt point. 



We procured a single specimen of this Eolis in June, 1846, while dredging, in company 

 with our friends, the Rev. Dr. Landsborough and his son, in Lamlash Bay, Isle of Arran. 

 From the heat of the weather at the time we were unable to keep it alive over the night. 



Eolis Glottensis comes nearest to E. arenicola of Forbes, which it resembles a good deal 

 in colour, but the proportions of the parts and number of branchiae are so different that we 

 think ourselves warranted in considering them distinct. 



Figs. 5, 6, 7. Eolis Glottensis, different views. 



8. One of the branchial papilla?, much enlarged. 



