Species of Planaria, — Ni/mphum coccineum, 489 



itself. When young, there are two small eyes visible at the side 

 of the head, and the yellow line does not exist, but there is no 

 other material difference. 



3. Pl. LACTIFLOREA. 



3. PI. linearis^ mutabilis^ lactijlorea^ antice maculis bints rubris / 

 ocuHs pluribus, 



Hab. The sea shore, under stones and amongst fuci, common. 



Desc. Bodi/ linear, about three inches long when extended, 

 but very contractile and polymorphous. It is of an uniform cream 

 -colour, sometimes faintly tinged with red, marked with two red 

 spots near the head, and there are two others behind these but 

 less distinct. Anterior to the spots are the minute black points or 

 -eyes arranged on the sides- 



Class. AiiAciiNTD^. Lamarck. 

 Fam. Pycnogonid^. Id. 

 Gen. Nymphum. Fab. 



1. N. COCCINEUM. 



J. N. corpore glabra^ coccineo ; geniculis tarsisquejlavis. 



Hub, The sea, near Berwick. 



Desc. Body and legs slender, of nearly equal thickness, of an 

 uniform fine transparent red colour, with the joints and tarsi yel- 

 lowish. Rostrum yellowish : mandibles like the body. When 

 jnagniiied, a central vessel, distinguished by its deeper tints, is seen 

 running uninterruptedly through the body and legs; and the latter 

 are somewhat clothed with very soft white delicate hairs. Ros- 

 trum cylindrical, subclavate, not jointed, divided beneath by a 

 longitudinal line, terminal. Mandibles two, originating from the 

 first segment of the body, biarticulate ; basal joint long, second 

 short and ovate, armed with two small equal claws. B dy qua- 

 driarticulate : tubercle oculiferous ; eyes two. ? Legs eight, live 

 times the length of the body, equal. Coxce four- articulate ; the 



