ADDENDA. 267 



Cosmarium Clevei (Lund.) Liitk. (vol. i, p. 87). 



Penium Clevei Lund. Desm. Suec. 1871, p. 80, t, 5, f. 11 ; W. & G. S. W. 



Brit. Desm. vol. i, p. 87. 



Dysphinctium Clevei De Toni in Liitkem. Gattung Penium. 1905, p. 337. 

 Cosm't fin in f'lerei (Lund.) Liitk. Zur K. Desm. Bohmens, 1910, p. 486. 



Cosmarium subtile (West) Liitk. (vol. i. p. 92). 



Pen in m subfile W. & G. S. West. Brit. Desm. vol. i, p. 9J. 

 Dysphinctium -subtile Liitk. (iattunif Penium. 1905, p. 337. 



subtile Liitkem. Zur K. Desm. Bohmens. 1910, p. 494. 



Cosmarium adelochondrum (Elfv.) Liitk. (vol. i. 



p. 93). 



Penium adelo< hnmlium Elfv. Anteck. Kinska. Desm. ISS1, p. 17, t. 1, f. 13. 

 J)i/xpltiiicliiim (nlf-Jriffioinlrtitn Liitkem. Battling Penium. 19O5, p. 337. 

 Cosmarium mlilochondnun Liitkem. Zur K. Desm. Bohmens. 1910, p. 483. 



Cosmarium lagenarioides* (Roy) Liitk. (vol. i. p. 93). 



Penium ltii/<:ii<iri<>i<li* Kov in Bis^. Doin. Windermere, 1SS4. p. 197, t. 5 



\V. cV <:'. S. \\. Brit. Desm. vol. i, p. 93. 

 ])i/xj>lti tit-fin m ldf/i iiarii<l> * Liitkem. Gattung Petiinm. 19(1.1. p. 337. 







Cosmarium cucurbitinum (Biss.) Liitk. (vol. i. p. 94). 



Penium rucurbilimim Biss. Desm. Windermere, 1884. p. 197. t. 5, f. 7; 



W. ,V- G. S. \V. Brit. Desm. vol. i. p. 94. 



Dysphinctium cwnrbitinnm Liitkem. Gattuni: I'tninm. 1905, p. 337. 

 Cosmnrinm cucurbitinum Liitkem. Zur K. Desm. Bohmens, 191<>, p. 487 



Cosmarium curtum (Breb.) Ealfs (vol. i. p. 97). 



curtum. Breb. 1838. 

 Cosmarium curtum (Breb.) Ralis. Brit. Desm. 1848, p. 109, t. 32, f. 9. 

 Penium ' /"ium Breb. in \Y. & <;. S. W. Brit. Desm. vol. i, p. 97. 

 Dysphixctiinn n/rfiim (Breb.) Xiig. Liitkem. Gattung Penium, 1905, p. 337. 



Cosmarium bacillare Liitk. (vol. i, p. 101). 



Penium inconspicuum West, Brit. Desm. vol. i, p. 101, t. 10, f. 15-17. 

 Dysphinctium inconspicuum Liitkem. Gattung Penium, 1905 p. 337. 

 Cosmarium bacillare Liitkem. Zur K. Desm. Bohmens, 1910, p. 484. 



* The writer believes this to be the first time that this species has been 

 published under this name. In his paper, ' Zur K, Desm. Bohmens,' 1910, 

 however, Lutkeniiiller states that all the speeies listed by him under Dysphinc- 

 tium in ' Gattung Penium,' 1905, p. 337, should really be placed in Cosmarium. 

 It is therefore transferred with his authority. 



