306 INTRIBUTION8 PROM nil NATIONAL HERBARIUM. 



Biddulphia m< run.; Van Hour. Bynop., pi. tOl.f. I 6, j>l. I 



l ini.lt. Atla- pi. / :. L888. Boyer, P i I'lnla. 



LOO (01. 



! Bail. Smithson. < « -n t r. Knowl. 2": 40. pi. :. | 

 I'm- h. Bist. fnfus. ed. I. B50. pi. *./. n. L861. 



:ih S) nop. Brit. Diat. 2. ■ L856! 



I; '.: 7: L2. pi. i M< i P 



In 2: -. L875. Etabh. II. Eur. Alg. 1: 311. L864. 



'.mi:,. Denkschr. \k.i.l. Wien 48-: v. L884. De Toni, SylL 

 2:88 

 l ■ tatione II. off southern < alifornia and near Santa I nil Light- 



house, Monterey Bay, < alifornia. 



Biddulphia ovalia Schmidl Boyei Proc. Acad. Phila. 1900: 712. L901. 



S< hmidt, Aila- pi. 115./. 5 7. l vs >. 

 rin is drawn to a Borneo bat narrow eroval and the processes art- in tin- long axis. 

 Pound at station 2835, off Lower California. 



Biddulphia padfica Grun. Mann. 



'aulas pa i ri un. : Schmidt, Alia- />!. 1 L5./ W. L888. 



Rattray ' makes this a Bynonym of AuMscus ralfsianus Grev.6 and Wupod&tcnu barba- 

 i ■ fing to it the name Pseudoauliscus rcdfsianus Grev. Katt. [t may be 



well \<> \<»<k upon these ae the same, in which case, the genus Pseudoauliscus not being 

 admitted, the name here would be J. rail's, rums Grev. My specimen i-. hoi 

 clearly a broad Biddulphia of the Cerataulus variety, and I prefer to agree with (Jru- 

 analysis, but t" include here, as in all oilier eases, the Cerataulus forms under 

 Biddulphia. 

 Pound ai station l' s <i7. Galapagos Hands. 



Biddulphia papillata <ir. A Si. Mann. 



ratium papillatum Gr. ,v St. Journ. Quek Micr. Club II. 3: 76,pl >'•■/. I '■■ L887. 

 Schmidt, Atlas pi. 128. f. 16. L888;pZ. 167. f. 6 6, pi. 168. f. 8. L891. DeToni,8yll. 

 Alg. 2: 962. I vii; Notarisia 2:351. L887. 

 I und five specimens of this rare and Btriking diatom ; one triangular and four of the 

 quadrate variety. The smallest, a Bingle valve, measured 0.048 nun. on each Bide; the 

 single valve, measured 0.137 nun. on each side; another, a complete 

 frustule, measured 0.087 nun. on each Bide and between opposite horn tips on the zona) 

 Bide ii measured 0.138 nun. This last specimen showed all the curious markings fig- 

 ured by Grove, " excepl thai the central brush-like clusters of setae were broken. 



h isevidenl thai Grove and Sturl in naming this species saw ii in only one position, 

 namely, the a alval view, as they state thai i1 is" very rare' - and thai they were indebted 

 to Weissflog for their specimen. Their drawing is also the valval one. Ii is conceiv- 

 able that, -ecu from this Bide only, ii might be called Triceratiumjbul how Grove, 

 having subsequently -'-en ii from the zonal side, as is shown by his draw ings,d could 

 failed to reclassify ii as a Biddulphia ii is difficull to understand. Ii is a per- 

 fectly typical example of this genus. 



The complete frustrule figured by Grove came from the Hawaiian [slands, as did 

 those figured by Schmidt. My specimens came from the same locality. Hut as the 

 original specimen was found in a fossil deposil ai Oamaru, New Zealand, it would l>e 



in. Roy. Micr. Soc. 8 : i:;. L888. 

 b Trans. Micr. Soc. Lond. n. s. 11: 52. pi. .;../'. M. L863. 

 • Trans. Micr. Soc. Lond. n. s. 12: ss. pi i:.(. .. L864. 

 d Schmidt, Atlas pi, t68.f. 8. L891. 



