VEGA- EXPEDITION ENS VETEN SKA TLIG A ARBETEN. 



489 



mm.) Centre with some small, scattered puncta. Margin with 

 small spines (G in 0,oi mm.). 



C. (Odontodiscus) granidosus Grun. (A. D. pag. 113, PI. VII, 

 fig. 130) Finm., Kara. 



C. (Odontodiscus) lacustris Grun. (A. D. pag. 114) Matotschkin 

 Schar, Kara. 



var. mariuHS Grun. (in CI. & Moll. Diat. No 172) Davis Strait. 



var. hyperhorPAis Grun. (CI. & Moll. Diat. X.o 315—18) with 

 coarser puncta. — Cape Wankarema. 



C. hcdlujornplialus CI. N. Sp. — Disc 0,o2 — 0,03 mm. in diame- 

 ter, with funnel-shaped centre. Puncta arranged in lines, radia- 

 ting from the centre to the margin, where they become smal- 

 ler. — PL 38, fig. 81, — Spitsb., Cape Wankarema. 



Stephanodiscus Hantzschii Grun. var. imsUla (A. D. pag. 115, 

 PI. VII, tig. 132, Van Heurck Syn. PI. XCV, lig. 11) Finmark. 



Thcdassioslra XordensJcidJdii CI. (Van Heurck Syn. PI. 

 LXXXIII, fig. 9) Greenl., Xorthern Atlantic Ocean, Finmarken, 

 Spitsbergen, Kara, Cape Wankarema. 



HyaJodlscHS scotlcus (Kg.) Grun. (A. D. pag. 116) Greenl. 

 (Bessel's Bay, Mushroom Point) Finm., Spitsb., East Cape. 



Fodosira hormoldes Mont. (Van Heurck. Syn. PI. XXXIV) 

 Greenl. (Mushroom Point). 



var. adriatica (Kiitz.) Grun. — Finm. 



P. maxima (Kiitz.) Grun. (Casp. Sea Alg. pag. 33. A. D. 

 pag. 118, Hyal. arcticus CI. & Moll. Diat. No 1. H. stelliger 

 D. of A. S. pag. 4) Greenl., Finm., Spitsb., Matotschkin Schar, 

 Cape Deschnew (East Cape). 



SJielefonema mirahih Grun. (CI. & Moll. Diat. Xo 318) Cape 

 Wankarema. 



I have seen of this species only a sketch, sent by Mr. 

 Grunow. It has the appearance of a chain of auxospores of 

 some Cheetoceros, but not having seen a specimen I cannot 

 say anything about it. 



3Ielosira nummidoides (Lyngb.) Kiitz. — Greenl., Finm., 

 Spitsb., Kara. 



var. hyperhorea Grun. (M. arctica Dickie) Van Heurck. Syn. 

 PI. LXXXV, fig. 3—4) Discovery Bay, Novaia Zemlia. 



M. sidcata (Ehb.) Kiitz. (Paralia sulcata CI.) Finm., Kara. 



var. siherica Grun. (Van Heurck Svn. PI. XCI, fig. 22) 

 F. J. L. 



var. hiserkda Grun. (Van Heurck Svn. 1. c. fig. 23—24) 

 F. J. L. 



