262 Prof. M'Intosli's Notes from tie 



papil]a3 are scattered over the general surface of the organ. 

 A single slender median dorsal cirrus is present. Foot with 

 a rather long low dorsal lamella, deepest in the middle. No 

 other flap. Dorsal cirrus of average length, subulate and 

 rather slender. Branchia of moderate size, slightly coiled 

 outward. The ventral division has a posterior lamella of 

 moderate size directed upwards and with a small flap supe- 

 riorly over the base of the bristles. Tlie ventral cirrus is 

 prominent and somewhat conical. Bristles rather long and 

 curved, pale golden ; longer (capillary) forms with a marked 

 curve of the bhide and a finely serrated edge. Barred forms 

 witli a spindle-shaped camerated region. 



The ninth and last British species is one near Nephthys 

 I'ncisa, Malmgren, which was procured on tlie shores of 

 Connemara, Galway, by the late Mr. A. G. Moore. In this 

 tlie head is somewhat shield-shaped, slightly wider in the 

 middle, and marked by two pale lateral areas which map out 

 the surface. Anterior and ventro-lateral tentacles small and 

 conical. The proboscis has rows of minute papillai and a 

 short dorsal cirrus (Malmgren). The foot has a rounded 

 dorsal lamella extending nearly to the tip of the organ, and 

 somewhat like that of JV. Io7igisetosa, CErst., though differing 

 both from that and N. ciliata. The small dorsal cirrus is 

 leaf-like and pointed, separated by a shallow notch from the 

 rather massive though short branchia, which has the tip bent 

 outward and forward. The branchia diminishes and dis- 

 appears posteriorly. Spinigerous lobe small, hidden between 

 the rows of bristles. Fillet guarding the base of the barred 

 bristles developed into a free flap posteriorly and inferiorly. 

 Inferior division of the foot trifid, the anterior fillet pro- 

 jecting most superiorly. Neither flap is much developed, 

 and the spinigerous lobe is conical. The bristles are dark 

 brown, the anterior having the barred region beyond the widest 

 part^ and the capillary forms being curved and minutely 

 serrated. The most marked features of the species are the 

 dark brownish bristles, the slight development of the lamellaj, 

 and the wide space between the divisions of the foot. 



3, On Nephthys (Aglaophanus) Inermis, Elders, from the 

 * Purcuinne.'' 



Though not falling within the British area, another species, 

 dredged in the ' Porcu))ine ' Expedition of 1870 off Cape 

 Finisterre, in 81 fathomsj may be alluded to, viz. Nephthys 



