108 THE MICROSCOPE. 
Eupodiscus radiatus. Stauroneis gracilis. 
Navicula Americana. Do. — phcenicentron. 
Do.  clavata. Do. pulchella. 
Do.  Hennedyi. Synedra radians. 
Do. _ liber. Terpsince musica. 
Do. _ irrorata. Do. Americana. 
Do. insignis. Tryblionella marginata. 
Do.  crabro. Triceratium favus. 
Do. Smithii. Do. trydactylum. 
To the foregoing list I will add the following species, included 
in a list heretofore published by the Hon. J. D. Cox, as appearing 
upon his type-plate of Mobile Diatoms, none of which are found in 
my type-plate, but which are mostly preserved in strewn slides or 
type-plates in my possession. 
Actinocyelus fuscus. Navicula Braziliensis. 
Actinoptychus areolatus. Do. —_Carribbea. 
Do. tri. fol., McNeill. Do.  didyma. 
Amphiprora alata. Do.  Jamaicensis. 
Do. costata, N. Sp., J. D.C. Do. Lewisiana. 
Do. _ lepidoptera. Do. —humerosa. 
Amphora Cleveii. Do. _marginata. 
Do. singulata. Do.  sculpta. 
Do. obtusa. Do. _ serratula. 
Amphitetras antidiluviana. Do. longa. 
Asteromphalus Brookii. Do. _ distans..: 
Anliscus coelatus. Plagiogramma validum. 
Bacteriastrum curvatum. Do. Gregorianum. 
Campylodiscus ecclesianus. 
Do. Samoensis. 
Cerataulus Smithii. 
Coscinodiscus lineatus. 
Do. nitidus. 
Cymatopleura elliptica. 
Cymbella heteropleura. 
Do. _lanceolatum. 
Eunotia parallela. 
Grammatophora marina. 
Total number of species, including varietal forms named in this 
Pleurosigma acuminatum. 
Podosira maculata. 
Raphoneis amphiceros. 
Surirella Davidsonii. 
Do. _— Febigerii. 
Systephania diadema. 
Tryblionella punctata. 
Triceratium alternans. 
Do. sculptum. 
article, is 137, and representing 37 genera of the Diatomacez. 
Mosits, Axa. 
