228 THE AMPHINOMID.I^;, APHRODITID-E, TOLYNOID/E, AND SIGALIONID.E 



t H. Ljungmani, Mahngren. Size | inch or little more, 

 rrostomial cleft deep, not very broad. 



Elytra fairly uniformly papillose, a very few minute cilia on 

 margin. 



2. Lateral tentacles about the length of the prostomium. 

 Four eyes, visible from the dorsum. 



*H. LUNULATA, Dellc GMcije. Size about f inch. 

 Prostomium deeply cleft, lobes somewhat rounded. 

 Elytra finely veined, margin smooth, a cluster of fine spines in 

 front of scar. 



*H. SPINIFERA. Size nearly 1 inch. 



Prostomium elongate, deeply cleft, lobes subconical. 



Elytra, the first light-coloured, the second nearly black, the 



remainder becoming lighter. Spinose near the outer border, 



where a few clavate cilia exist. 



*H. SETOSissiMA, Savigny. Size to If inches. 



Prostomium broad, somewhat deeply cleft, lobes rounded. 

 Elytra densely covered with minute papillae, a few clavate cilia 

 on outer border. 



*H. AREOLA! A, Grube. Size f inch. 



Prostomial cleft somewhat deep, wide, a slightly curved V-shape. 

 Elytra leathery, marked in irregular polygonal areas. 

 Posterior and outer margin with long cilia. 



f H. C^LIACA, St. Josqjh. Nearly f inch. 

 Prostomium broad. Tentacles and cirri with long tapering papilla?. 

 Eyes postero-lateral. 



fH. ARENicOLiE, St. Joscph. Size 1 inch. 



Prostomium nearly quadrangular, the anterior border with small 



semicircular depression in the centre. 

 Three tentacles finely papillose, subulate. 



3. Lateral tentacles distinctly longer than the prostomium. 



H. Frazer-Thomsoni, Mcintosh. 

 Four eyes, visible from the dorsum. 

 Elytra, margin smooth, 



*H. IMBRICATA, Linn. Size to 2 inches. 

 Posterior eyes, only visible from the dorsum. 

 Elytra, margin with small clavate cilia. 



