REPORT ON THE PYCNOGONIDA. 



27 



Depth in Fathoms. 



(^) 



0) 



5 to 7 



Down to 14 

 fathoms 

 (Wilson). 



3 to 4 fathoms 



(i) 



700 



Name. 



Geographical Distribution. 



Polperro, Cornwall (Hodge), 

 Nizza (Grube), Kerguelen 

 (Bohm). 



Polperro, Cornwall. 



Kerguelen Island, Observatory 

 Bay. 



Achelia Iwvis, Hodge, British Pycnogonoidea, Ann. and 



Mag. of Nat. Hist., 3d ser., vol. xiiL p. 115, 1864. 



Bohm (Monatsb. d. K. Akad. der. Wiss. inBerl., 1879, 



p. 186) refers to the same species a specimen from Ker- 

 guelen with seven-jointed palpi. 

 Achflia hispida, Hodge, British Pycnogonoidea, Ann. 



and Mag. of Nat. Hist, 3d ser., vol. xiii. p. 115, 1864. 



I doubt, whether this species described by Hodge is 



indeed a true species. 



TanysUjlum, Miers (1879). 



Mandibles rudimentary, one-jointed ; palpi six-jointed ; ovigerous legs ten-jointed ; 



proboscis rounded-conical. 



Tany-stijlum sti/ligernm, Miers, Crustacea of Kerguelen 



Island, Phil. Trans. London, voL cLxviii., extra vol., pp. 



200-214, pL xi., 1879. Nymphvn stijligerum, Miers 



(sp.), Ann. and Mag. of Nat. Hist., 4th ser., vol. xvi., 



1875. Most probably this is a good species ; however, 



I do not feel quite .sure that the two specimens studied 



by Miers are really full-grown animals. 

 Tanysfylum orhiailare, AVilson, Pycnogonida of New 



England, Trans. Connect. Acad., vol. v. p. 5, 1880. 



Whether or not Tanystylum will prove a well-char- 

 acterised genus, or will turn out to be identical with 



Achelia, Hodge, is doubtful as yet. 



Lecythcn-hynchus, Btihm (1879). 

 Mandibles rudimentary, two-jointed or represented by small knobs ; palpi nine-jointed ; 

 ovigerous legs ten-jointed ; proboscis cylindrical. 

 LecythorhyHchus Mlgendorfi, Btihm, Monatsb. der K. Enosima (Japan) 



Akad. d. Wiss. Berlin, 1879, p. 187. Corniger liil- 



gendorfi, Bohm (sp.), iUd. and Sitzungsber. d. Ges. 



Naturf. Freunde zu Berhn, 1879, p. 140. Bohm has 



given a good description of this species, loc. cit. 

 Lecythorhynchns armatus, Eiihrn, Sitzungsber. der Ges. 



Naturf. Freunde zu Berlin, 1879, p. 140. L. Jdlgm- 



dorfi, Biihm, is furnished wth rudimentary mandibles 



represented by small knobs ; L. annatiis, Bohm, with 



rudimentary but two-jointed mandibles. There can be 



no doubt, however (according to Bohm), that these 



species belong to the same genus. 



Oorhynclius, Hoek (1880). 

 Mandibles rudimentary, one-jointed; palpi nine-jointed ; ovigerous legs ten-jointed ; 



proboscis broadly ovate. 



Vineyard Sound, and occurs as 

 far south as Virginia (Wilson, 

 loc. cit.). 



Yeddo (Japan). 



^■Oorhynchus ancldaudiw, n. sp. Of this very character- 

 istic Pycnogonid, only a single specimen was dredged 

 during the voyage of H.M.S. Challenger. 



East of Auckland. 



