fur the most part ol' oleun gravel or coarse saiul, most ol' the 

 arenaceous forms dis:ippcar at once, and instead of the abundiincc 

 of Nonioninas and Miliclas previously found, a very large proportion 

 consist of Planorbulina lobatula, which can hold its own, attached 

 to seaweeds and polyzoons. Polystomella Arctica also becomes 

 somewhat prominent, while the I<agenida3 and Kntosolcnidtc 

 appear in abundance. 



What few sandy forms do occur are depauperated and com- 

 posed of very coarse particles. The Foraminifera as a whole 

 however are very abundant, and in some samples dredged by JMr. 

 Whiteaves almost equal in quantity those in the deeper Atlantic 

 soundings. 



In the estuary of the St. Lawrence itself, Jiulimina pyrula be- 

 comes a somewhat common form. Among forms which in the 

 (lulf of St. Lawrence maybe mentioned as specially characteristic 

 of deep water, arc Nodosaria (Glandulina) hievigata, Globigerina 

 bulloides, very .small ; Bulimina, principally JJ. squamosa, also 

 small; I'vigcrina pygmoea, Cassidulina. 



From depths greater than lOO fathoms all the Foraminifera arc 

 very small and delicate ; and Lagenidm, JJuliminida;, (Jlobigcrina 

 bulloides, together with a few depaup^ ited Nonioninsc, constitute 

 Mie greater part of the fauna. From these depths also come many 

 Diatoms, mostly Coscinodiscus, and Sponge spicules. I'oiysto- 

 mella striatopunctata is almost everywhere prevalent, though it 

 nowhere attains to any very great size, and below about .']() 

 fathoms, becomes small and generally rare, and continues increas- 

 ing in rarity till it almost disappears at I5U0 fathoms. Tn some 

 localities, at about 30 fathoms, P. Arctica is abundant, and greatly 

 surpasses in size the ordinary Polystomella; occurring along with 

 it. The remaining P. striatopunctata; also at this depth often 

 show a remarkable proneness to run into modifications resembling 

 one or other of the numerous species and varieties into which the 

 genus is subdivided, but as the transition series are complete, it 

 is very dillicult to place the bulk of the specimens satisfactorily 

 under th<!m. It has been thought better in the tabic to include 

 as many as ave easily seen to be modified striatopunctat;v) under 

 that name. Nonionina Labradorica, though not so universally 

 distributed as the above, is a very characteristic species in the 

 Gulf. It seems to lie best developed and in largest numbers at 

 about ;>(► fathoms. It thins oft' both in numbers and size as we 

 go into sh.Jlowcr water, and decreases much in size, though not 



