424 
The examples given below on the oceurrence of dead shallow- 
water shells at considerable depths in the Atlantie off the Sahara 
and the Canary Islands and off the Azores are quoted from 
A.Locard: ,,Mollusques Testacés, Expeditions scientifiques du ,,Tra- 
vailleur" et du ,,Talisman"", Unfortunately Locard has in his 
statement about the vertical distribution as little as Jeffreys, 
distinguished between living molluscs and dead shells. In regarding 
the vertical distribution of the living molluscs in other tracts of 
the Atlantic it can be inferred that most of the forms mentioned 
below can not have been dredged in a living state at the recorded 
depths. 
VI. Off the Sahara and the Canary Islands. 
»Talisman" 1883. " St. 53. 905 meters, off the Canaries: 
Psammobia faeroensis Chemnitz. Valve. Range in the Atlantic 
ca. 10—400 M. (B. M.). 
Venus rudis Poli; sublittoral. 
»Talisman" 1880. St. 60. 1975 m. South of the Canaries: 
Tapes durus Gmelin; several valves; littoral. 
»Travailleur" 1882. St. 40. 3580 m. Between the Sahara 
and the Canaries: ; 
Range of the living molluses 
in the Atlantic 
MERE NR Sublittoral. ,Sur nos cåtes on la voit 
dans les zones herbacée et coraliienne". 
Locard, Mollusques Testacés. 11. p. 
Pectunculus glycemeris, Linné... | Sublittoral. 
Trochus granulatus, Born 
Tellina serrata, Renier .…...… Sublittoral. 
—… balaustina, Linné ... ca. 10—1000 m.'s (B. M.) 
Nonus radis Poi 0. Sublittoral. 
Cardium paucicostatum, Sow. .. | Sublittoral. 
Solecurtus antiquatus, Pulteney | Sublittoral. ,Elle ne parait pas descendre 
: eauconp au delå d'une cinquantaine 
åe par sm” Eg PERRESE: Locard, 
LE MH 
