100 Canon A. M. Norman — yote^ on the 



belongs to the earlier genus Hippothoa, Lamarck, and 

 coccinea is the type of the earlier genus Escharoides, 

 Lamarck, as settled by Gray. Gray instituted a genus 

 Escharella, to which he removed variolosa and hnmersa ; 

 and Hincks established three new genera, in which he placed 

 the three remaining species Membraniporella nitida, Micro- 

 pur ella ciliata, and Smittia trispinosa. We have seen that 

 Johnston's L. hyalina has its place in the earlier described 

 genus Hippothoa', the second species in his work was 

 Lepralia nitida, and I would suggest that that species be 

 regarded as the type of his genus. 



Genus Lepralia, Johnston. 

 =-Memhraniporclla, Iliucks (nee Lepralia, Siuitt, nee Lepralia, Hincks)- 

 Type, Lepralia nitida, Johnston. 



39. Lepralia nitida, Johnston. (PI. VIII. fig. 8.) 



Nordkyu [Nordgaard). I have uot myself seen any speci- 

 men of this species from Norwegian or Arctic seas ; nor 

 would it appear that Smitt had met with it, since the only 

 localities he gives are Britain and Bahusia. The record of 

 this species, therefore, in East Finraark extends our know- 

 ledge of its range very considerably. 



Genus Gephyrotes *. 



Type, Gephyrotes {Cribrilina) nitido -punctata, Smitt. 



Bars narrow, and widely separated niore than halfway to 

 the central line, leaving broad open intervals between them, 

 then bending to either side they unite with the adjoining- 

 bars forming thus a regular arch, beyond this are large 

 lateral lacunes, few in number, no median lacuncs usually 

 developed. The foremost bar but one is forked, the lower limbs 

 of the opposite forks uniting transversely across the zooecium, 

 the upper limbs directed upwards and forwards and then 

 uniting, thus leaving a large opening below. Oral bars large 

 and solid, resting, as regards their central portion, on the 

 upper limbs of the fork behind, and in front forming the 

 lower lip of the oral opening, and at their sides below two 

 large openings, but these are not equal in size to the central 

 opening already mentioned ; the bridge thus formed by the 

 foremost bar and the front members of the second bar is 

 projected outwards and overhangs the rest of the zooeeiuni 

 in such a way that the large central opening is often con- 

 cealed from sight when the zocecium is viewed from the Iront. 

 * yf(j)vj-)(i)Ti]s, a bridge-builder. 



