288 Canon A. M. Norman and Dr. T. Scott on 



]);iir also resemble in some respects those of the species 

 n-t'erred to, but differ somewhat in form and armature; the 

 primary joints terminate in a narruwer apex, and on the 

 iimer margin there are short and subeqnal sette and two 

 slender terminal seta3 of unequal length ; the space that sepa- 

 rates this pair of seta3 from the nearest of the other three is 

 distinctly wider than that which se[)arates these three from 

 one another ; the secondary joints are subovate and nearly 

 twice as lono; as broad ; the outside edge is nearly straight, 

 but the iinier is broadly convex ; a seta springs from near 

 tiie middle of the outer margin and four from the angularly 

 rounded extremity of the joint. 



Furcal joints short. 



Hub. Dredged outside the harbour at Fowey, Cornw^dl, 

 ]\lay 12li), 1903 ; not common. No males were observed. 



Stenhelia longirostris, sp. n. 



The form we describe under this name was dredged at 

 Salcombc in 1875. It is not unlike S. refle.vi, T. Scott, in 

 its general appearance and in the structure of some of its 

 ajipcndages ; it is, however, a smaller species, the specimen 

 from which the description was prepared measured about 

 •b8 mm. {.}^ of an inci)) in length. Body subcylindrical, 

 with the torehead produced into an elongated and rather 

 slender rostrum. The first joint of the eiglit-jointed an- 

 tcnnules in the female is slightly longer than the second and 

 nearly twice as long as the third joint ; the fourth, which is 

 also rather longer than the third, has the upper distal angle 

 ])roduced forward to near the end of the following joint to 

 torm the base of a long sensory filament; the fifth, sixth, and 

 seventh joints are small and nearly equal in length, while the 

 last is about twice the lengtli of the preceiling one. The 

 formula shows aj)proximately the proportional lengths of all 

 the joints — . 



Proportional lengths of the joints. . 13. 11. 7.0. 3. o. 3. 5 

 Numbers of the joints I 2 3 4 5 6 7 8" 



The three-jointed outer ramus of the second antenna} is of 

 moderate length. 



The first joint of the second niaxilli|)('ds bears two mode- 

 rately long sctaj on the inner aspect of the distal end ; second 

 joint narrow, subcylindrical, and furnished with a longitudinal 

 row of spinules on its inner aspect, and a small seta near the 

 middle and another near the end of the inner margin ; 

 terminal claw slender and moderately elongated. In the 



