"iSS I)IAT()iMA(;E;15 — BIDDLr.l'llIA, CERATAULIXA 



BIDDULPHIA CHINENSIS Oniv. 

 iT. Micr. Soc. Vol. XIV, 18G6 PI. IX fig. 16.) 



ISIIH March: 7 N. on W. 



Jutic: 10 N. r,;} W. 



Temperature: 2().ii to 27.2. 



Salinity: 36.oi. 



Plankton-type. Occurs in the (lulf of Bengal, at Java, Hongkong, 

 Jedo r^ay (Japan). Tropical neritic form — Xi. 



BIDDULPHIA MOBILENSIS (Bail). 

 (V.w Heirck Syn. PI. CI fig. 4-0. 



1898 January: 21^ N. 17-' W.; 48' N. (> \V. 

 March: 49^ N. 2' W.; 62^ N. 2= E. 

 .-l;j/77: BU- N. 4^—2° W. 



.4h£^?(s;^: Azores; 55° N. 5° W 

 October: Azores; 1-2" N. 50' \V. 

 .Vorr_'/»/vr.r: 60° N. 4"- W. 



1899 April: 49- N. 7"^ W. 



Temperature: 14.i, mean of 9 obs., max. 23.7, min. 6. 



Salinity: 34.94, mean of 7 obs., max. 36. ^d, min. 32..51. 



Plankton-type. This species is evidently a neritic form, which 

 occurs only exceptionally in the oceans. It abounds round the British 

 Islands. Schroder mentions it from Naples. — Xni. 



CERATAULINA BERGONII H. Peragollo.i 



(Diatomiste PI. XIII fig. 15, 16. — Cl. Bih. Kongl. Sv. Vctensk. Akad. Handl. Vol. 



XX 3. PI. I. flg. 6.) 



1898 January: 7^ N. 53- W. 



March: T N. 55' W.; 36° N. 29° W.; 45' N. 3ti- W.; 48° N. 



49° W. 

 April: 47-^48" N. 40—33' W. 



Ostonfold's data used. 



