THE VOYAGE OF H.M.S. CHALLENGER 
AcantUephyra acvti/rom. 
„ xiVrt. 
Gi^moilcu jiarmn. 
allautieu^. 
Bmiula reticulata. 
Fluiftra hiseriuta. 
ChauUodus sloanii. 
Gonostoma microdon. 
Stermptyx diapdiana. 
The following 25 species (or 26 per cent.) were taken in the zone between 100 and 
500 fathoms : — 
Ba/hyactin i>ymmetrica. 
Di'lioryaihtut italicus. 
Ojihiacnutha co^fmica. 
Axpuioilioilema microtubercidatuin. 
Knnua 0 f>aliua. 
i 'ijtheir ilojtydernia. 
„ diet yon. 
„ ttuhmi. 
Typldutanau> kenjwdenend^. 
.,•1 eanthephyra hrachytehonix. 
„ xica. 
lienthexieymux hraxiliendx. 
Gennaulax parvus. 
Sergestes atlanticiis. 
Area (Barbatia) corpidenta. 
„ ( „ ) pteroessa 
Spirula peronii. 
Bicellana navicularis. 
Bugula reticulata. 
Kinetoslcias pocillum. 
Discina atlantica. 
Gonostoma gracile. 
„ microdon. 
Lepidopus tenuis. 
Maemrus armatus. 
The following 12 species (or 12 per cent.) were taken in depths less than 100 fathoms 
or at the surface : — 
Baihyartis symmetrica. 
Pi/niaster venustus. 
I.xt monice jmoducta. 
Bainlia minima. 
Cy there diet yon. 
Bathylanais bathyl/rotes. 
Gennadas parvus (surface). 
Sergestes atlanticus (surface). 
Parapagui-us ahyssorum. 
Taonius sulimi (surface). 
Pyrosoma giganteum (surface). 
Sternoptyx diaphana (surface). 
Uf the IGG species taken only in this zone between 2000 and 2500 fathoms, 154 
8|>ccies (or 93 j)er cent.) are new to science, and the following 23 new genera were 
obtained only in this zone of depth : — 
Ammotolenia. 
Slannophyllum (.')). 
Axtmidenna. 
Caidfteai yx. 
Ihrlynridyx. 
Bathyyorgia. 
A ulorrh IS. 
P'dyojtui. 
xEginura. 
Tesserantha. 
Ophiochytra. 
Deima (2). 
Panlpidia (2). 
Kuxamytha. 
Samythopris. 
Para/l ryope. 
Tylaspis. 
Buthydoris. 
Ilistiopsis. 
Malacosarcus. 
Opostomias. 
Paehystomias. 
Typldonus. 
'I’wenty of these genera are each reprc.sented by a single species, two others {Deima 
and Pnrelpi(Un) each by two species taken at separate Stations within the zone, while 
the remaining one {Stanuojt/ttjlhim) contains five species all taken at one Station. 
