OF PLYMOUTH AND THE ENGLISH CHANNEL, 227 



Genus GATTYANA, Mcintosh. 



Lateral tentacles arising below the base of the median, they and 

 the cirri densely covered with long cilia. Palpi, with numerous 

 short clavate papilhie truncate at the tip. 

 Elytra, fifteen pairs, minutely spinous, covering all the dorsum 

 and attached to seg nents 1, 3, 4, 6, 22-5 et seq. 

 This genus has only recently been instituted by Mcintosh on the 

 ground of priority, the better-known name of Nychia being already 

 appropriated. 



*Gattyana cirrosa, Pallas. Size nearly 2 inches. 



Genus HAEMOTHOE. 



Body not much elongated. 



Lateral tentacles fixed below the median. 



Palpi, with rows of minute truncate papillffi. 



Eyes four, two on the lobes in front, the two posterior on the 



dorsum in front of the collar. 

 Elytra, fifteen pair, covering the whole of the dorsum. 

 Segmental papiUas long, PapilLie of proboscis %-. 



1, Lateral tentacles distinctly shorter than the prostomium. 

 (a) Posterior eyes not in contact with nuchal border. 

 Four eyes, visible from the dorsum. 

 *H. marphys^, Mcintosh. Size about | inch, 



Prostomium deeply cleft, lobes somewhat rounded. Eyes small. 

 Elytra rather thin, smooth, and pellucid, A belt of small papillae 

 (spines) in front of scar. 

 f H. maxillospinosa, St. Joseph. Size nearly f inch, 

 Prostomium, with small, narrow cleft. 

 Median tentacle on a very broad base. 

 Jaws bristling with chitinous spines. 



Two eyes, visible from the dorsum. 

 H, antilopis, Mcintosh. Size nearly 1 inch, 



Prostomium somewhat deeply cleft, lobes subconical. 



Elytra having long cilia on the outer border, 

 •j-H. PICTA, St. Joseph. Size 1 inch, 



Prostomial cleft widely V-shaped. 



Three tentacles, papillose, subulate, on stout dark brown bases, 



(b) Posterior eyes in contact with nuchal border. 

 H. zetlandica, Mcintosh. Size about | inch. 

 Prostomial cleft broad, not very deep. 

 Elytra, with a few minute papillcXi, though apparently smooth. 



