LEPTOPLANA. EURYLEPTA. 7 



Le])toplana atomata, Oerst. Entw. Plattw. 49. f. 24 (the stylette). 



Dies. Syst. Helm. i. 197- 

 Planaria maculata (atomata?), Dalyell, Pow. Great, ii. 104. pi. 14. 



f. 27-32. 



Hab. Shores of Scotland, under stones between tide-marks. 



5. L. ellipsis, oval, with an even margin, reddish, plain or speckled, 

 with a dark mesial line; eye-clusters irregular. Length 5'"; 

 breadth 3'". 



Planaria eUipsis, Dalyell, Pow. Creat. ii. 101. pi. 14. f. 9-16. 

 Hab. Coast of Scotland, Dalyell. 



2. EURYLEPTA, Ehrenberg, 1831. 



Eurylepta, Oersted, Entw. Plattw. 50. Diesing, Syst. Helm. i. 208. 

 Proceros, Quatrefages in Ann. des Sc. nat. iv. 137 (1845). 



Char. Body flat and broad, the front with two tentacula con- 

 tinuous with the body : eyes many, clustered on the neck : mouth 

 ventral, anterior. 



1 . E. comuta, oblong, with a wavy margin, yellowish on the dorsal 

 surface, paler underneath, and spotted with white ; tentacula elon- 

 gate and filiform. Length 5-6'" ; breadth 2'". 



Planaria cornuta. Mull. Zool. Dan. Prod. 2681 ; Zool. Dan. i. 37. 



tab. 32. f. 5-7. Turt. Gmel. iv. 65. Bosc, Vers, i. 305. 

 Eurylepta cornuta, Oerst. Plattw. 50. Dies. Syst. Helm. i. 208. 



Hab. The coralline region, rare. 



2. E. DalyeUii, oval, with an even margin, from cream-yellow to 

 ruddy orange, veined dendritically, or uniform ; tentacula submar- 

 ginal, short, triangulate ; eyes numerous, clustered at the base of 

 the tentacula. Length 5-15'" ; breadth 2-4'". 



Planaria cornuta, Dalyell, Pow. Creat. ii. 97. pi. 14. f. 1-4, and pi. 15 

 (embryo). 



Hab. The coralline region. It lurks in the crevices of empty shells ; 

 or, usually, lies buried in mud. Apparently not rare on the coast 

 of Scotland, Dalyell. Berwick Bay, Dr. Johnston. 



3. E. sangTiinolenta, ovate or oval, reddish-brown, veined, with a 

 darker mesial line; tentacula marginal, short, triangular, acute; 

 eyes numerous, in two clusters, coalescent in front. Length 8-10'" ; 

 breadth 5-6'". 



Planaria cornuta, Johnston in Loud. Mag. Nat. Hist. v. 344. f. 79. 

 W. Thompson in Ann. Nat. Hist. xv. 320, and xviii. 392. Oersted, 

 Entw. Plattw. 55. 



