Trochostoma. 



183 boreale, M. Sars. 

 Ankyroderma. 



184 Jeffreysii, Dan and Kor. 

 Trochoderma. 



185 elegans, Theel. 

 Chirodota. 



186 Isevis, Fab. 

 Myriotrochus. 



187 Rinkii, Steens. 



188 brevis, Huxley, (=Oligotrochus 



vitreus, M. Sars.) 



Synapta. 



189 digitata, Montagu. 



190 inhserens, Mull. 



191 tenera, Norman. 

 Leptosynapta. 



192 Girardii, Verrill. 

 Elpidia. 



193 glacialis, Theel. 

 Laetmogone. 



194 violacea, Theel. 



II. PANTOPODA. 



(=PYCNOGONOIDEA). 



Nymphon. 



1 hirtum, Kroyer. 



2 hirtipes, Bell. 



3 Stromii, Kroyer. 



4 grossipes, O. Fab. 



5 robustum, Bell (=abyssorum, Norman) 



6 longitarse, Kroyer. 



7 gracile, Leach. 



8 gallicum, Hoek. 



9 brevirostre, Hodge. 



10 macronyx, G. O. Sars. 



Pallene. 



11 intermedia, Kroyer. 



12 emaciata, Dohrn. 



13 spectrum, Dohrn. 



14 tiberi, Dohrn. 



Neopallene. 



15 campanellae, Dohrn. 

 Barana. 



16 castelli, Dohrn. 



17 arenicola, Dohrn. 



Ammothoa. 



1 8 longipes, Hodge. 



19 echinata, Hodge, (=fibulifera, Dohrn). 



20 franciscana, Dohrn. 



Ammothoa. (continued.) 



21 Langi, Dohrn. 



22 appendiculata, Dohrn. 



Tragaeus. 



23 communis, Dohrn. 

 Rhyncothorax. 



24 mediterraneus, Dohrn. 

 Clotenia. 



25 conirostris, Dohrn. 



Phoxichilidium. 



26 femoratum, Rathke. 



27 minor, Wilson. 



28 virescens, Hodge. 



29 longicolle, Dohrn. 



30 exiguum, Dohrn. 



31 angulatum. Dohrn. 



32 robustum, Dohrn. 



Phoxichilus. 



33 spinosus, Montagu. 



34 vulgaris, Dohrn. 



35 carybdaeus, Dohrn. 



Pycnogonum. 



36 littorale, Strom. 



37 pusillum, Dohrn. 



