SUMMARY OF RESULTS. 
1429 
Lists of these have been given in the deeper zones (see pages 1282, 1290, 1301, 1313- 
1314, 1327, 1357-1360). 
Of the 3900 species taken only in this zone less than 100 fathoms, 1384 species (or 
35 per cent.) are new to science, and the following 82 new genera were taken only in 
this zone ^ : — 
Dendroppiis. 
Steplianidium. 
Periholaster. 
Latreillopsis. 
Proteleia. 
Neohelia. 
RMpidaster. 
Picroceroides. 
Sideroderma. 
SphenopliylUa. 
Ophiohyrsa. 
Discoaradine. 
Thrinacophora (2). 
Cylloseris. 
Eupholoe. 
Hannonia. 
Ampliius. 
Domoseris (3). 
Salvatoria. 
Watsonia. 
CinacMjra. 
Moseleya. 
Pldydenophora. 
Janolus. 
Psammastra. 
Napopora. 
Acontiostoma (4). 
Ohdla. 
Scolopes. 
Sandalolitha. 
Cardenio. 
Atopogaster (4). 
Stryplmus. 
Tieliopora. 
Chosroes. 
Chorizocormus. 
Anamixilla. 
Ticlioseris. 
Dryopoides. 
Mordiddioides. 
Heteropeynia. 
Azygoplon. 
Harpinioides. 
Padiydilxna (3). 
Pericharax. 
Calampliora. 
Platyisdinopus. 
Symplegma. 
Acanthoisis. 
Didyodadium. 
Protellopsis. 
Tylobrandiion. 
Calypterinus. 
Diplodieilus. 
Socarnoides. 
LopJwnedes. 
Elasinogorgia. 
Diplocyathus. 
Sophrosyne. 
Muroenolepis. 
Paranephthya. 
Heteroplon. 
Paranebalia. 
Salilota. 
Placogorgia. 
Sdiizotricha (2). 
Artemesia. 
Tetrabradiium. 
Platycaulos. 
Seiurella. 
Bmdiycarpus (2). 
Thysanopsetta. 
Scleronephthya. 
Thecodadium. 
Cheirotlirix. 
Zandorhyndms. 
Pteropathes. 
PegantJia. 
Scallasis. 
llyanthopsis. 
Polycolpa. 
Synalpheus. 
The great majority of these genera are represented by a single species, while there 
are 3 with two species, 2 with three species, and 2 with four species. 
Notes on the Geographical Distribution . — Of the 4250 species enumerated in the 
above list, 1472 species (or 35 per cent.) were taken south of the southern tropic, 2392 
species (or 56 per cent.) were taken within the tropics, and 571 species (or 13 per cent.) 
were taken north of the northern tropic; while 26 species (or 0’6 per cent.) were found 
to be common to all those three areas, 31 species (or 0'7 per cent.) were common to the 
southern and northern areas, 94 species (or 2 per cent.) were common to the southern 
and tropical areas, and 88 species (or 2 per cent.) were common to the tropical and 
northern areas. In addition, there are eleven species, the habitats of which are unknown. 
The bathymetrical and geographical information in the foregoing lists is presented 
in tabular form on page 1430, excluding the Medusae and Siphonophorae and other species 
possibly captured in the intermediate or surface waters, so that these numbers are 
believed to include only benthonic species. 
' The number of species is indicated in parentheses for those genera containing more than one species. 
(summary op results chall. exp. — 1894.) 180 
