88 BULLETIN OF 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 likely 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 Woops HoL_e MARINE FAUNA, AS COMPARED WITH THAT OF CERTAIN OTHER REGIONS 
FOR WHICH LISTS HAVE BEEN PREPARED. 
Canada (Whiteaves). Plymouth. 
Woods aL IN ene i 2 
Groups of organisms. ( seamed Rea Number | Common | Number | Common i iteeca cae (Geni). 
report). ; of to Woods of to Woods 
species. Hole. species. Hole. 
PTOLOZOA Disc er denns sine oa GOCE SP) | ousteseceeeanets 64 13 109 9 BBO. Wan nats xem 
Poriferasicassccre te onceoe | r2(-+7?) 8(+9?) 36(+2?) 6 18 4(+xr?)'| 58 45 
ERY drozoa er. ere ee ae 132(+8?) 60(+1?) 66 41 121 34(+6?) | 129(-+1?) 64(+2?) 
Scyphozoa peer erent aes 5(+1?) 5(+2?) 5 2 8 (2?) 6 9 
INCEMNOZOA ey enone 14(+3?) I2/ 44 4 34 2(+1?) 24 29 
Ctenophorac es Ges aeheae 8 4(+1?) 4 4 3 2 4 TES 
puarbellatian. «ccna. caer 40(+1?) 9 4 2 62(+2?) 2 (+?) a V0 la SR 
Beeematodan ay. cek eels RACHA) acess leoladetal ocaserall alssaravovy’»: slo's sails renehe se: ovecd: oie etal] Sie axecala cial steve ee wr DeMRTaIe eee ete ahcoce:sicssove7s'| neater pere arate 
Restodal ees) cco eee FICS)! | craaserstercisiesei| bis crake sels Sate Simon etate wate he tall ateraSemaerete eral Cherae ce ersiale arelali levers, stortre ars) tie | Geeta 
Wemtertitied.,. £2 Jace ange 25(+1?) 13(+5?) 20(+1?) 7 35 5 24(= 2) || RWee jerieenae 
Nemathelminthes.......... 33(+5?) Be VMN ie biaretave © y5\llcreieta Gislatoeie ala c eraisietce eevee Clstoie ote tiie (ove te [ices ies erele stele |e ee area 
Ghetornatha™ of. sacra 1(+1?) CEPT) a corcperc ete hell ote cto iot anes A Se al PER ae I 2 
1D jVaXo jo) ob (2 ama at ae Biv ity ilistarece ac hatere cree liek rerorotale craciell ave crstemrevctansys 5 ON it ARS A Zi oc |lecteveseteunet eaters 
MEV OZOG Mie cate g oSe soo eee tte | 76(+5?) 29(+4?) | 115 45(+2?) | 103(+1?) 28(+4?) | 136 56 
124 G27 e} a0) 0°07 Fs Niner se ay Aree Lie Be ASU ME (EA eye a 2 TAN Ge BONA PTR Se Ae rei ae | foe tarlermnaite's.s Biv i) OY [Ane cetera 
TP OLGUAS eae A aiate:» oie raicia araicleuell ete Saw AIS A ole mehaee essed lecise oe beste lieve ators DML aie cid 5,3 Hae of fbi arora eee I 
INSterpid ears oe eric a)s sce a: 6 & 29 5 9 I 12 Io 
Ophitiroideay.. is. h5c6s56 058 6 5 21 3 10 (1?) 7 8 
Hehitioideayecr eas cctecias cae heaps 4 3 2 SGT loses eesens 7 5 
Holothuroideay yo... se.a. e's 8(+1?) 6(+1?) 5 4 8 I 8 13 
Grinoidea fe Riacisicrecisietielosede| meseaee Cossiall joepice mace Py BT eee aS aa DOn | Cs, Co te eee Berea as I I 
Poly chicetaivl cn ost eeiinesae 133(+10?) 88(+13?) 105(+1?) 29 148 Io 87(+1?) 135 
a Of 98 Woods Hole Protozoa, only 29 are Foraminifera, while all of those in the other columns belong to the latter group. 
b Including Polygordiide. 
