476 CL EVE, ^DIATOMS. 



P. rJiomboides CI. (A. D. pag. 14, PL IV, fig. 73; Kara, 

 Cape Wankarema, F. J. L. 



var. angustior Grun. • — F. J. L. 



P. Stuxhergii CI. & Grun. (A. Diat. pag. 54, PI. IV, fig. 74) 

 F. J. L., Kara, Cape Wankarema. 



var.? hyperhorea Grun. (transv. strife 22^2 oblique 25^/2 

 in 0,01 mm.) 



P. distort wn W. Sm. (Syn. I, pag. 67, PI. XX, fig. 210} 

 Spitsb. (longit. strife 28, transverse 25 in 0,oi mm.). 



P. Fasdola W. Sm. (Syn. I, pag. 67, PI. XXT, fig. 211) 

 Greenl., Finm., Spitsb., Kara. 



var. sulcata Grun. (A. Diat. pag. 55, PI. IV, fig. 75) Spitsb., 

 Kara. 



var, tenuirostris Grun. (A. Diat. pag. 55, PL IV, fig. 76) 

 Kara. 



P. laUicim W. Sm. (Syn. I, pag. m, PL XXII, fig. 207) 

 Spitsb. 



P. WansbecJm Donk. (T. M. S. VI, pag. 24, PL III, fig. 7) 

 Kara. 



P. macrilm W. Sm. (Syn. I, pag. 67, PL XXXI, fig. 276) Kara. 



P. prolongatum W. Sm. (Syn. I, pag. 67, PL XXII, fig. 212) 

 Spitsb., Kara. 



P. tenuissimum W. Sm. (Syn. I, pag. 67, PL XXII, fig. 213) 

 Spitsb., Kara. 



var. suhtilissima Grun. (A. Diat. pag. 58) Kara. 



var. liyperhorea Grun. (L c.) Kara, Cape Wankarema. 



P. Spenceri var. horeaUs Grun. (A. Diat. pag. 60, PL IV, fig. 

 79) Kara. 



Of P. Spenceri I found in a sample from Hackluyts, Spitsb. » 

 a variety with 19 transverse and 24 longitudinal strife, length 

 0,11, breadth 0,oi3 mm. In the Wankarema gfitherings occurs 

 fxnother variety with 20 transverse and 26 longit. strife in 

 0,01 mm., length 0,085 mm,, breadth 0,oo8 mm. 



P. vitreum CI. (A. D. pag, 15, PL IV, fig. 78) Kara, Cape 

 Wankarema (transverse strife 19, longit. 20 in 0,oi mm.). 



P. glaciale CI. N. S. — Sigmoid, acute, med. line almost 

 straight. Longit. and transverse strife 28 in 0,oi mm. Length 

 0,143. Breadth 0,oi9 mm. — PL 35, fig. 13. — Cape Wankarema. 



P. stauroplwrum Grun. A. Diat. pag. 61) Greenl. (Davis 

 Strait). 



Bonhinia carmata (Donk.) Ralfs (Donkin T. M. S. VI, pag. 

 23, PL III, fig. 5) Greenl. (Davis strait. Length 0,i mm. Breadth 

 0,02 mm. Oblique strife 18 in 0,oi mm.) Finm. 



