588 EOLIDID^. 



Doto coronuta, Lovkn, Arch. Skand. Nat. p. 151. — Alder and Hancock, 

 Monog. part 2, fani. 3, p. QQ. 



Body (half an inch in length) linear, yellowish, spotted 

 with crimson. Head-veil broad, entire. Dorsal tentacles 

 fihform, transparent, truncated at their tips, rising out of 

 long trumpet-shaped sheaths. Branchiae five to seven on 

 each side, large, spindle-shaped, muricated with four or five 

 whorls of pointed tubercles, each tipped by a crimson spot. 



Not uncommon in the coralline zone, inhabiting the 

 branches of Plumularm and Sertularia ; occasionally found 

 in the laminarian and littoral zones. We have taken it 

 as deep as fifty fathoms. The Doris pinnatifida of Mon- 

 tagu, and possibly also his Doris maciilata are considered 

 by the authors of the " British Nudibranchiata " as varie- 

 ties of this beautiful species. 



2. D. FRAGiLi.s, Forbes. 



Plate A. A. A., fig. 4. 



Tritonia pinnatifida, Johnston, Loud. Mag. Nat. Hist. vol. viii. p. 61, f. 4. 

 Melibcea pinnatifida, Johnston, Ann. Nat. Hist. vol. i. p. IIG. 



„ (Doto) fragilis, Forbes, Mai. Mon. p. 4, pl. 1, f. 4. 

 Doto fragilis. Alder and Hancock, Monog. part 5, fam. 3, plato 5. 



Body (about an inch long) linear, stout, olive-brown or 

 yellowish. Head- veil produced and rounded at the sides. 

 Dorsal tentacles filiform, tapering, brown, issuing from 

 broad-mouthed, trumpet-shaped sheaths. Branchire six to 

 nine in number, large, ovate, stout, brownish-yellow with- 

 out spots, approximate, muricated with from seven to nine 

 whorls of obtuse papillse. 



It lives on the coralline Antennularia in most parts of 

 the British seas. The branchiae frequently fall oflf at the 

 sliofhtest touch. 



