Table of the Distribution of the Genera of Asteroidea collected by the Challenger in the great Oceanic Areas, 
showing the number of Species by which each is known to be represented, and the number of Species 
which are common to two or more Oceans. 
I. II. Il. Ve Vic VI. VIL Speci 
pecies common to 
North South Indian Southern | Eastern North South two or more 
Atlantic. | Atlantic, Ocean, Ocean. Archi- Pacific. Pacific. Oceanic Areas.} 
pelago. 
PHANEROZONIA. 
ARCHASTERIDA. 
PARARCHASTERIN A, LVI 
Pararchaster , , |2or(2) 3 1 ee i 2 1 ise { ee 
Pontaster . . .|6or(%)9 1 1 2 2 2 ae 
PLUTONASTERINE. LYILVII 
F (1.)(II.) VII. 
Dytaster . . . |3or(1) 4 2 2 1 1 a ae 
Plutonaster. . . |4or(2)5 1 dis ae 5h ee 1 sattoos 
—Tethyaster . . an a Boe. eli. See aCe ste BoB HOOOE 
Lonchotaster . . I bbs ae 1 506 aon ame selesiee 
PSEUDARCHASTERINZ. 
Pseudarchaster , i} 1 He ate ae iss i eres 
Aphroditaster . . 1 eee ihe ae 300 oe oes weanes 
ARCHASTERINA. | : IIL.V.VIL, 
; A 9 2 
Archaster . . .- 2 2 1 2 IILV.VLVIL. 
PORCELLANASTERIDA. 1 
PoORCELLANASTERINE. sie 
Porcellanaster. . |3or(?) 5 1 de Bae 1 1 2 seers 
Styracaster . . 2 1 oan 1 Jesate 
Hyphalaster . . 2 | 1 1 Te. («| ener seer 
Thoracaster . . 1 on we |e Bee ane Meee lL eeecue miles pu cnet 4 
CTrENODISCIN®. 
Ctenodiscus . . 1 1 : 1 ky Gleam cess 
ASTROPECTINIDE. 
ASTROPECTININE, | 
Craspidaster . . ‘ie nee ales Bsa 1 1 ee { Nees 
Leptoptychaster . 1 a Se 2 ve BUOHOG 
TD Tabs Vale Velie 
> : 2 1 
Astropecten a ne 18 6 9 sie 8 9 8 V.VLVIL, VLVIL. 
if 4 
| ILVIL. 
Psilaster . 3 1 ah 1 1 { Al 
Phoxaster . . 1 : se : ae il 
Bathybiaster . . 2 orga eee 1 Bs ie 1 { Sls 
1 The Oceans are indicated by Roman numerals corresponding to the numbers at the head of their columh; and‘ the Oceans in which a 
common species occurs are placed together in the position of the numerator of a fraction ; the number of species common to them is indicated by 
: LV. , 5 sya : 
an Arabic numeral in the position of the denominator. Thus a +— signifies that one species found in the Indian Ocean also occurs in the 
1 
IL.V. VIL. ; : ; 
Eastern Archipelago ; HVE AE would signify that two species occurring in the Indian Ocean are found in the Eastern Archipelago, and also 
extend into the South Pacific, When a species is represented by a variety, and not the identical form, the numeral indicating the Ocean in which 
the variety occurs is placed in brackets ; thus e ) indicates that a species found in the North Atlantic is represented by a variety of that 
species in the Southern Ocean, 
