100 CATALOGUE OF THE RECENT FOKAHItflFEKA OF 



few spots on the Northumberland or Durham coast where this 

 depth is attained. In the deeper water off the coast of Scotland 

 specimens are of much more frequent occurrence, and still further 

 north, in the Shetland seas, both Uvigerina angulosa and the more 

 robust typical form IT. pygmcea are plentiful. 



Durham coast, deep water off Marsden and Seaham ; very rare. 



3. U. ikkegtjxabis, nov. spec. [PL XII, fig. 5.] 



Description. Shell oblong, ovato-acuminate, consisting of irre- 

 gular chambers arranged in an obscure spiral, the terminal cham- 

 ber prolonged into a short neck in which the aperture is situated. 

 Surface smooth, free from costse or other ornamentation, but 

 perforated by numerous small foramina. Colour, brownish. 

 Length -§V of an inch. Holy Island, very rare. 



The thin, perforated shell, irregular segments, and freedom 

 from surface-markings, are sufficient to distinguish this form from 

 other species of the same genus. 



Obtained from the Northumberland dredgings (off Holy Island) 

 1864. 



Pam. GLOBIGEBINIDA. 



1. ORBULINA, UP Orb. 



1* 0. univeesa, D' Orb. Orbulina uni versa. Bee. For. Gt. Br. 

 PI. 1, fig. 4. 



Bare. Orbulina universa shows the same tendencies in its 

 distribution as Globigerina bulloides, with which species it is 

 commonly associated in deep-sea soundings. It is very rare at 

 depths of less than 50 fathoms, and the few specimens which 

 have occurred in the deeper dredgings of the Northumberland 

 and Durham coasts, where the depth seldom exceeds from 35 to 

 45 fathoms, have been the feeble brownish shells of starved 

 specimens. Prom Professor "Williamson's figure I judge that his 

 examples are in the same condition. Mr. Jeffreys' Shetland 

 sands, taken at 70 to 95 fathoms, yield abundance of pure white 

 specimens ; and soundings from the abysmal depths of the Atlantic 

 and the Mediterranean furnish still larger numbers. 



