1452 
THE VOYAGE OF H.M.S. CHALLENGER. 
Aia'YOX.aria : 
A nthomvricea. 
Hydroid.a : 
Endemh'ium. 
<1 rammarin . 
Asteroidea : 
Bathyhiaster. 
Calliaster. 
Ctcnodisciis. 
fyophastcr. 
Mimaster. 
Annelida : 
Travisia. 
ISOPODA : 
A pseud es. 
SCHIZOPODA : 
Amhiyops. 
Mysidopsis. 
Pseudomma. 
Anomura : 
Paralomis. 
Brachyuea ; 
Cancer. 
Lamelltbranchiata : 
Crenella. 
Kellia. 
Gasteropoda : 
Jeffreysia. 
Nudibranchiata : 
Archidoris. 
Euplocamus. 
Rizzolia. 
Cephalopoda : 
Baihyteuthis. 
Brachiopoda : 
Waldheimia. 
Tunicata : 
Eugyra. 
Sidnyum. 
Fishes : 
Lycodes. 
Parcdiparis. 
The following 15 genera, some of which were not taken by the Challenger, are 
mentioned in the Challenger Reports as having been recorded from north and south of 
the tropics, but not (or only doubtfully) from within the tropics: — 
Tctractinellida 
Asteropus. 
J*achastrella. 
Eunephthya. 
Plumarella. 
Asteroidea : 
Pallene. 
Pycnogonum. 
Tanystylum. 
He-Xactinellida : 
Chonelasma. 
•Vlcyonaria : 
Acrdm ria. 
BHsinga. 
Lonchotaster. 
Porania. 
Pycnogonida : 
Achelia. 
Fishes : 
Gymnelis. 
Melanostigma. 
It is evident that a number of these species and genera may have bej 2 n already 
recorded, or may yet be procured, from the tropics, but, on the other hand, it is certain 
that the list of Bonthos animals occurring both in high northern and high 
southern latitudes, and not in the intervening tropics, could be greatly increased 
had it been considered desirable to include information concerning shallow-water 
organisms from other sources than the Challenger Report, to which this discussion is 
limited. 
