312 DEEP-SEA DIATOMACE^ MANN. 



Triceratium Weissii, (Jrnii. (Schmidt's Atliia, pi. !•."). figs. 2-12.) Scarce. 

 Trinacria excavata Hoil). Foniia tctragoiia. (Sclmiidt's Atlas, pi. 152, ligs. 26-28.) 

 Scarce. 



The necessity noted under Triceratmm for doing away with the genus 

 also exists in this case. Trinacria shouhl be united with Solium and 

 Hemiaiiliis and be given cither the hist name, as the ohlest (1840 by 

 Ehrenberg), or Solintn, as the most suggestive. 



A number of sports and abnormabties of some of the species named 

 were found in this gathering, but liave not been described, as they 

 have no bearing on classification. 



Newark, N. J., March, 1892. 



