56 eolididjE. 



40. E. exi'gua, Alder and Hancock. 



E. exigua, A. & H. in Ann. N. H. 2nd eer. i. p. 292 ; Brit. Nud. Moll, 

 fam. 3, pi. 37. 



Body yellowish- white, marbled with brown or olive : dorsal 

 tentacles longish, white, with one or sometimes two bands of 

 brown : oral tentacles short, with a brown band : branchial 

 processes ovate, abruptly pointed, white, with 2 or 3 bands of 

 brown, reddish at the tips ; set in 5 rows of one or two each : 

 foot nearly linear, and scarcely produced at the sides in front. 

 L. 0-2. 



Habitat : On Laminarim and Faci in shallow water, espe- 

 cially on those fronds that bear the Laomedea geniculata [and 

 L. gelatinosa~] ; probably not uncommon, but seldom observed 

 on account of its small size. Powey Harbour ; Bangor, North 

 Wales ; Bamburgh and Cullercoats, Northumberland (Alder 

 and Hancock); Burghead (Murray); St. Andrews (M'Intosh) ; 

 and Liverpool (Collingwood). [Falmouth (Cocks); W. Sweden 

 (Loven); Kiel Bay and Little Belt (Meyer and Mobius). 

 According to the last-named authors this is possibly Limax 

 tergipes of Forskal, Doris lacinulata of Gmelin, and Tergipes 

 bidlifer of Loven.] 



I. Branchial processes in a single row on each side: odonto- 

 phore denticulated, without lateral spines. (Tergipes, Guv.) 



41. E. despecta, Johnston. 



Eolidia despecta, Johnst. in Loud. Mag. N. H. viii. p. 378, f. 35. Eolis 

 despecta, A. & H. Brit. Nud. Moll. fam. 3, pi. 37. 



Body slender, white, with an undulating olivaceous line in 

 the middle of the back from the gastrohepatic vessel appearing 

 through: dorsal tentacles long, reddish at the sides towards 

 the base : oral tentacles very short : branchial processes fusi- 

 form, expanding a little upwards, and ending in obtuse tips ; 

 white, marbled with olive or greenish, in the centre, and often 

 having a fulvous ring near the tip, which is white ; they are set 

 singly, and alternate, 4 on each side : foot narrow, rounded 

 in front. L. 0-25. 



