88 



BULLETIN OP THE BUREAU OF FISHERIES. 



Again, the areas comprised differ widely in their extent, ranging as they do from 

 restricted bodies of water, such as the Gulf of Trieste, to such extensive tracts of ocean 

 as the Irish Sea or the seas bordering the eastern coast of Canada. Even the report 

 of Verrill and Smith, despite its title, covered a much wider territory than that dealt 

 with in the present work, and included greater depths of sea. Indeed, with the ex- 

 ception of the waters of the Gulf of Trieste, those of the Woods Hole region, as here 

 understood, are the most restricted among those considered in respect to bathymetric 

 range. 



It would not be fair, therefore, to look to the parallel columns of this table for 

 any really accurate comparison of the faunas of the several regions referred to, either 

 in respect to their wealth or their composition. Especial reservation must be made 

 in accepting the figures representing the number of species common to Woods Hole 

 and to Canada or Plymouth. It is hkely that the number of common species has been 

 underestimated, partly owing to the difficulty, without exhaustive research, of resolv- 

 ing the synonymy of the various species; partly to the probable identity, not yet 

 recognized, of various European and American forms. If due caution be exercised, 

 however, we believe that facts of real value may be brought out by the comparison. 



Species are here listed as doubtful which are either undetermined or of doubtful 

 identity, provided that they are believed to be distinct from any others included in 

 the same list. Varieties are omitted, except in those cases where the species is repre- 

 sented only by one of its varieties. 



Synopsis of Woods Hole M.-^rine Fauna, as Compared with that of Certain Other Regions 



FOR WHICH Lists have been Prepared. 



Groups of organisms. 



Protozoa a 



Porifera 



Hydrozoa 



Scyphozoa 



Actinozoa 



Ctenophora 



Turbcllaria 



Trematoda 



Cestoda 



Nemertinea 



Nemathelminthes . 



Chxtognatba 



Dinophilea 



Bryozoa 



Brachiopoda 



Phoronis 



Asteroidea 



Ophiuroidea 



Hchinoidea 



Holothuroidea 



Crinoidea 



Polychaata b 



Woods 



Hole 



(present 



report). 



99(+5?) 



i!( + 7?) 



i32( + 8?) 



s(+i?) 

 m( + 3?) 



S 

 40( + l?) 

 S=(+4?) 

 T.(+3?) 

 = 5( + l?) 

 33( + 5?) 



.(+1?) 



3 

 76( + 5?) 



6 



6 

 4 



8(+i?) 



133(+I0?) 



Verrill 



and 

 Smith. 



8(+9?) 



6o(+i?) 



5(+:?) 



13 

 4(+I?) 

 9 



13( + S?) 



2 



=9( + 4') 



4 

 6(+l?) 



8S( + I3?) 



Canada (Whiteaves). 



Number 



of 

 speeies. 



64 



o6(+2?) 



66 



S 

 44 



4 



JO( + I?) 



115 



4 



3 



3 

 los(+>?) 



Common 



to Woods 



Hole. 



13 

 6 



41 

 2 

 4 

 4 



45( + ^?) 



Plymouth. 



Number 



of 

 species. 



109 



18 



34 

 3 

 6j(+2?) 



I03( + I?) 



148 



Common 



to Woods 



Hole. 



1. Irish Sea 

 tHerdman). 



■9 



4( + l?) 



34( + 6?) 



( = ?) 



2(+i?) 



2 



J (+?) 



28( + 4?) 



239 



58 



I29(+I?) 

 6 

 24 



24( + 2?) 



136 



8-( + i?) 



Trieste 

 (Grae£fe). 



45 

 64C+J?) 



9 

 29 



S 



8 

 5 

 13 



o Of 98 Woods Hole Protozoa, only 29 are ForaminiJera, while all of those in the other columns belong to the latter group. 

 b Including PolygordiidEB. 



