8 PLANARIADjE. 



Proceros sanguinolentus, Quatrefagesin Ann. des Sc. nat. iv. 138.pl. 4. 



f. 4 (1845). 

 Eurylepta sangiiinolenta, Dies. Syst. Helm. i. 209. 



Hab. The coralline region. 



4. E. vittata, ovate, dilated in front, rounded behind, sinuous on 

 the margin, yellowish, with ten or twelve parallel concentric dark 

 lines, the centre white with a median black line ; tentacula ear- 

 like, triangulate, speckled with black dots. Length 2" ; breadth 1". 



Planaria vittata, Montagu in Linn. Trans, xi. 25. pi. 5. f. 3. Lam. 



An. s. Vert. iii. 180 j 2de edit. iii. 608. W. Thompson in Ann. 4" 



Mag. Nat. Hist. v. 247, and xviii. 392. Harvey, Sea-Book, 157. 



fig. 

 Proceros cristatus, Quatrefages in Ann. des Sc. nat. iv. 139. pi. 3. f. 7- 



(1845). 

 Eurylepta vittata, Dies. Syst. Helm. i. 209. 

 Eurylepta cristata. Dies. Syst. Helm. i. 210, 



Hab. The coralline region. 

 («) Falmouth, J. Crunch. 



3. PLANOCERA. 



Planocera, Blainville in Diet, des Sc. nat. Ivii. 578 (1828). Oersted, 



Entw. Plattw. 47. Dies. Syst. Helm. i. 217- 

 Stylochus, Dies. Syst. Helm. i. 215. 



Char. Body flat, with a smooth dorsal surface and an entire mar- 

 gin : a pair of contractile tentacula on the back in front, with or 

 without eyes at their base : mouth with a short proboscis lobed or 

 crenate at the orifice. 



1 . PI. folium, broadly ovate, yellowish-brown, veined and reticulate, 



with a linear-oblong pinnated mesial spot ; tentacula short, obtuse, 



with a small cluster of eves near the base. Length 17'" ; breadth 



11'". 



Stylochus folium, Grube, Actin. 51. f. 12 (1840). Dies. Syst. Helm. 



i. 216. 

 Planocera folium. Oersted, Entw. Plattw. 48. 



Hab. The coralline region. Berwick Bay. 



Obs. I have seen a single specimen of which a figure was made just 

 when diffluence had begun ; but the process had proceeded too far 

 before leisure was aff'orded of making a description. The specimen 

 agreed very well with Grube' s figure. 



Fam. IL PLANARIAD^. 



Dendroccela, Oersted, Entw. Plattw. 50. Ray Soc. Zool. Rej). 

 1847, 518. 

 Obs. The body is oblong, flattish, with an entire margin. The 



