172 J. Wood-Mason — On Uhopalorhynchus Krbijeri. [No. 3, 



cercBy'paliys^ and accessory legs (= mandibles, and 1st and 2nd pairs of maxillae 

 of Kroyer) of those who range the Pycnogonida with the Arachnida, the first, 

 second and third pah^s of cephalic appendages respectively, thus avoiding 

 the use of terms implying affinities and homologies that may not in reality 

 exist. 



EHOPALOEnTTfCHUS,* gen. nov. Wood-Mason. 



Corpus lineare, gracillimum, annulis thoracis perdistinctis, cylin- 

 dricis, utrimque dilatatis, processibusque lateralibus magnis, obconicis. Rost- 

 riwi uniarticulatum, elongatissimum (corporis longitudinem psene aequans), 

 clavatum, ore triradiato. Annulus oculiger in collum vix coarctatus. Ap- 

 pendices cephalicce primiparis absunt. App. ceph. secundi paris tenuissimse, 

 rostro longiores, novemarticulatse, articulis secundo tertioque elongatis ; 

 app. ceph. tertii paris paulo longiores, ex decem confectse articulis, — quorum 

 tertius quintusque sunt elongatissimi, terminalesque quatuor prehensiles ac 

 margine interiori serrati ciliatique — in utroque adsunt sexu ; appendices 

 utriusque paris, secundi ad tertium, tertii ad quartum articulum, sunt geni- 

 culatse. Tiiberculus oculiger in postica annuli parte est situs. Pedes gra- 

 cillimi, inermes, equales, corpore (rostro incluso) duplo longiores, unguibus 

 auxiliaribus armati sunt nullis. Abdomen uniarticulatum, obtuse-conicum, 

 perbreve, vix distinguendum. 



EnoPALOEHTNcnus Keoteei, n. sp. 



Body linear, smooth. The rostrum is almost as long as the rest of the body, 

 moveably articulated to the middle of the anterior end of the oculigerous 

 somite, slender and filiform nearly to its middle whence it expands and 

 finally narrows to its obtuse extremity ; when examined in profile, the convex 

 upper contour of the expanded portion is seen to carry two minute forwardly- 

 directed spines, the one behind the other in the middle line. The mouth is 

 situated at the extremity of the rostrum and has the form of a triradiato 

 slit, the three slits being so disposed that a circle described from the point in 

 which they meet so as to pass through then- free extremities would be by 

 them divided into three equal sectors. The ocular tubercle is erect, occupies 

 the posterior half of the segment on which it is placed, and has the form of a 

 short cylinder surmounted by a minute cone, the eyes being situated partly 

 on the cylinder and partly on the cone at points corresponding, as usual, 

 to the extremities of the arms of a St. Andrew's cross. A very distinct cres- 

 centic suture, bounding the base of the ocular tubercle posteriorly and 

 curving forwards and outwards so that, if produced far enough, it would pass 



* poiraKov, clava; pvyxos, rostrum. 



