156 



EXPEDITION TO POINT BARROW, ALASKA. 



AMPHICTENIDJ3. 

 17. PECTINARIA sp. 



A good many empty tubes of a species of Pectinarla were dredged on the muddy bottom jnpf 

 outside the grounded ice, in about 15 fathoms, aud near the station on the sandy patches in ahont 

 3 fathoms. No living specimens were taken. 



This is perhaps P. granulata, as this species was obtaiued by the Vega Expedition as far rast 

 as Saint Lawrence Bay. 



GEPHYREA. 



ECHIURID.E. 

 18. ECHIURUS VULOARIS (Savigny) Forbes. 



Tear. 



Name. 



Citations. 



isai 



1835 

 1841 



Thalattema vnlgare, Savigny Syst.des Ann., p. 102. 



.' Kchiu rug sitchamsit, Brandt I'rodromus Desrriptionifl Animalinm all H. Mertensio obs., p. 262. 



, . 



Echiurtit vul</ari>, Forbes ................. History of British Star-fishes, p. 263. 



1859 Lchiurut palUtrii, Biesing ................. Revision der Rhyngodeen, Sitzungs-bfrii-htr d. 



xxxvii, p. 775. 

 1865 chiunn pattasii, Quatrefages ............ Histoire dea Anneles, ii, p. 502. 



K. Akad. d. Win. 



The specimens of Echiunts brought home by the expedition cannot be distinguished from tho 

 description of E. pallasii (=E. vulgaris] given by Quatrefages (loc. cit.). 



This species has heretofore been recorded from Great Britain and France. Brandt's description 

 of E. sitchccnsis (loc. cit.) is not sufficiently detailed to enable me to tell whether it is the same 

 species or not. 



This worm was quite abuudant on the beach, near the station, after the great gales of September 

 and October, 1881, aud two specimens were dredged on the muddy bottom, in about 3 fathoms of 

 water, August 9, 1883. 



SIPUNCULID^. 



19. PHASCOLOSOMA sp. 



A good many specimens of a species of Phascolosoma were dredged near the station in about 

 3 fathoms of water. They are so badly contracted in alcohol as to entirely disguise the specilic 

 characters. I was able to determine by dissection that they belong probably to the genus Pliasco- 

 Io30i((, but could make out nothing further. 



NEMATODA. 



CHyETOGNATHA. 

 20. SAGITTA sp. 



A s-pecies of Sagitta occurred very rarely in the neighborhood of the station. One or two 

 Bpecimens were caught in the towing-net set under tlfe sea-ice March 1, 1883. A few were also 

 observed after the sea opened iu August, 1883. 



ECHINODERMATA. 



HoLOTlIUUIOJDEA. 

 1. PENTACTA FRONDOSA Jaeg. 



Tear. 



\.mic. 



Citations. 



1780 Cucumar a.frondnsa, O. Fabvicius Fauna Grtenlanilica, pp. 343, 344. 



1837 Cueumariafronjo^ Liitken Vidk:ibcli};c Ueddolelser ita den Naturlust. Foron. i KjGben. 



p. _'. 



18C1 Cucxinar a fi'ottrltiga. M. Sars Ovei>i(:t al'Nor^t's Echinoderuer, p. 100. 



luTl Cm '//mar afromliita, l.iitkcn Vldeiink. Mrddol., 23, p. 30C. 



l>-7.") t'ucumar afrviidosa, Liitken (Nominal list.) Art-lii: Manual, p. 1H4. 



