Pycnogonidea borealia & arctica. 355 



maris iisdem feminæ parum dissimiles, sed aculeis numerosis 

 recurvatis obsiti, spinis lateralibus partis terminalis simplicibus, 

 non pectinatis, ungve terminali lævi. Pedes ambulatorii sat 

 robusti, spinis minutissimis undiqve scabri, propodo tarso lon- 

 giore, ungve terminali valido, ungviculis auxiliaribus vero 

 omnino rudimentaribus. 



37. Boreonymphon rohustum, (Bell). 



Nymphon rohustum, Bell, Belcher's Last of the Arctic Voyages, Vol 11, p. 409, 



PI. XXXV, fig. 4. 



Hab. copiosisnimnm in mari extra oras Norvegiæ, Islandiæ 

 et Spetsbergiæ, prof. 260—649 orgyarum (Exped. Norvegicæ), 

 in mari carico pluribus locis, prof. 20 — 80 orgyarum (Exped, 

 Nordenskjøldii); ceterum ad Americam areticam (Bell), in mari 

 extra oras septentrionales Scotiæ (Hoek), in mari Bareotsi 

 (Heller), in mari carico (Hansen). 



F am. 5. Amniotheidæ. 



Gen il Ammothea, Leach, 1815. 



Syn: Achelia Hodge 



38. Ammothea echinata, (Hodge). 



Achelia echinata, Hodge, List of the British Pycnogonida. Ann. Mag. of 

 Nat. Hist. 3d series, Vol. X III. p. 115. PI. XTI, flg. 7—10. 



Hab. ad oras occidentales Norvegiæ in prof. 10—20 or- 

 gyarum passim; ceterum ad Britanniam (Hodge), Galliam 

 (Grube), in mari mediterraneo (= A. fibulifera Dohrn), adqre 

 oras orientales Americæ borealis {= A. spinosa Stimpson). 



39. Ammothea lœvis, (Hodge). 

 'i Achelia lœvis, Hodge, British Pycnogonida 1. c. p. 115. PI. XIII, fig. 12. 



Hab. ad oras occidentales Norvegiæ simul cum antécé- 

 dente; ceterum ad Britanniam (Hodge). 



