INTRODUCTION. 5 
of Thursday Island, their headquarters from September 1 to 8, 1874, and on Sep- 
tember 9 visited Booby Island and also dredged and trawled in that vicinity." 
Challenger Station 186 was near Wednesday Island, in 8 fathoms of water, where 
three hauls with a dredge were made on a bottom of sand, shells, and gravel. 
Station 187 was near Booby Island, in 6 fathoms, where two hauls with a dredge 
and.one with a trawl were made on a deposit of sand and shells. Station 188, at 
which a number of interesting echinoderms were secured, lies just west of the 
Torres Strait region, as here limited ; 27 species of echinoderms were taken at station 
186, quite equally divided between the five classes, but at station 187 only 14 
species were taken, and of these 9 were sea-stars, while there were no holothurians. 
The list of echinoderms gathered by the Challenger naturalists, including the littoral 
collections, follows; species which were described as new to science are indicated 
by italics. Where the species is discussed in the present report under a different 
name, that name follows the sign =. 
CRINOIDEA: 
Antedon microdiscus =Zygometra microdisca. 
ASTEROIDEA—continued: 
Metrodira subulata. 
multiradiata =Zygometra microdisca. 
variipinna =Heterometra crenulata. 
Actinometra belli =Comaster belli. 
maculata =Comatella maculata. 
multiradiata =Capillaster multiradiata. 
parvicirra =Comanthus annulata. 
paucicirra =Comatula rotalaria. 
pectinata =Comatula pectinata. 
solaris =Comatula solaris. 
valida =Comanthus annulata. 
ASTEROIDPA: 
Astropecten zebra. 
zebra var. rosea. 
Luidia forficifer. 
Stellaster incei. 
princeps. 
Anthenea tuberculosa. 
Pentaceros callimorphus =Oreaster gracilis. 
turritus =Oreaster nodosus. 
Nepanthia brevis. 
Ophidiaster helicostichus =Hacelia helicosticha. 
tuberifer =Tamaria tuberifera. 
Retaster insignis. 
OPHIUROIDEA: 
Ophiolepis annulosa =Ophiolepis superba. 
cincta. 
Ophiothrix longipeda. 
stelligera. 
Ophiomaza cacaotica. 
Euryale aspera. 
EcHINOIDEA: 
Phyllacanthus annulifera =Prionocidaris bispinosa. 
verticillata =Prionocidaris — verticil- 
lata. 
Pleurechinus bothryoides = Temnotremabothryoides. 
Salmacis globator =Salmacis virgulata alexandri. 
rarispina =Salmacis belli; 5. dussumieri. 
Laganum depressum. 
Peronella decagonalis = Peronella orbicularis. 
Breynia australasia. 
HOLOTHURIOIDEA: 
Synapta verrilli =Protankyra verrilli. 
Colochirus challengeri = Pentacta challenger. 
Actinocucumis typicus. 
Thyone fusus var. papuensis =Thyone papuensis. 
1JIn 1878 J. E. Tenison-Woods listed the following Echini from the Torres Strait region, as having been collected 
by Sir William Macleay in 1875. According to Hedley (1909), Macleay’s vessel, the Chevert, was at Erub from July 31 
to August 13. 
Goniocidaris geranioides. Erub. 
Diadema setosum. Erub, ‘‘ 10-20 fms.”’ 
Astropyga radiata. Erub, ‘‘ 10-20 fms.” 
Heterocentrotus mammillatus. Erub, ‘‘ 10-20 fms.”" 
Echinometra lacunter. Erub. 
Strongylocentrotus eurythrogrammus. Cape York. 
Temnopleurus toreumaticus. Trub, ‘10-20 fms."” 
Salmacis bicolor. Erub. 
Erub; Cape York. 
Erub; Cape Grenville. 
Erub; Cape Grenville. 
Salmacis rarispina. 
Echinus darnleyensis. 
Hipponoé variegata. 
Fibula volva. Burar. 
Arachnoides placenta. Erub; Cape Grenville. 
Maretia planulata. Erub; Cape Grenville. 
Eupatagus valenciennesi. Cape Grenville. 
Breynia australasie. Cape York. 
I have transcribed the names of the echini as given in the list. regardless of spelling, but I have used the native 
names of the islands in giving the localities. This paper of Tenison-Woods is the first published dealing with Torres 
Strait echinoderms, although the material was collected about a year after the Challenger’s visit to the region. But 
the presence in the list of Goniocidaris geranioides, Strongylocentrotus erythrogrammus, and Eupatagus valenciennest, 
southern species not otherwise known on the eastern coast of Australia north of Port Jackson, has so shaken my faith 
in its reliability that I have decided to leave it out of account. This decision is strengthened by noting that the depths 
given for Diadema ( =Centrechinus) and Heterocentrotus are highly improbable for such very littoral species. Moreover, 
it is impossible now to determine what the species of Salmacis really were. The indications are that, even if there are 
no misidentifications, in some way a shifting of labels took place, which has led to some highly improbable records. 
Consequently I have ignored this list throughout this report except in the case of Echinus darnleyensis. Ramsay 
(1885) has virtually discarded Tenison-Woods’ list and records none of its species from the Torres Strait region, 
except Lchinus darnleyensis, Fibularia volvua, and Breynia australasie. 
