93 



This was originall) named C. Doegeanus, Deby, in mj cabinet. 

 It is described by me among the new species on .1 pre< eding 

 'This diatom is probably a variety of C. California** (Gi 

 Deby, which I have from San Redondo, Sta. Monica; etc. It 

 differs principally from it by the presence of a distinct circlet. It 

 is not a variety of Rabenhorstii^ Jan., as supposed by M. Brun. 

 On a slide, 3393, in Brim's collection, both C. California** and 

 C. coronilla co-exist, while the label bears " C. eccLsianus, var. 

 coronilla" 



7.— Campylodiscus simplex, Brun. Coll., No. 2861. 



Diat. Foss. du Japan, pi. II.. f. 8, Brun. Collect., slides 2861 

 and 2864. From Sendai, Japan, Brun. Collect. 



This I consider as a variety of C. clivosus, with small buttons 

 at the ends of the valves and the same fine striation. It is allied 

 to C. Granlandicus of Cleve, which I have examined from the 

 Stockholm museum. 



8.— Campylodiscus rivulosus, Temp, et Brun. 



Diat. Foss. du Japan, p. 29, pi. II., f. 9 a, b ; Brun's Collect.. 

 slides 2863 a °d 2 #66. 



Croup of the Raphidae. 



Dimensions : — 



Diameter of valve : Large specimen, 0-093 m.m. ; small 

 species, C033 m.m. 



Transverse diam. of raphe, 0006 m.m. 



Length of rays, C036 m.m. 



Valve very slightly oval, nearly circular. Area linear, with 

 blank space bordered at top and bottom by a row of from 8 to 1 2 

 distinct granules. The intermediate space without granules. The 

 lines of granules occupy a length of about 00 iO at each end of 

 area. Rays simple, from 60 to 100. Inter-radials distinctly and 

 rather coarsely moniliform, which give the appearance of waviness 

 figured by Temp, et Brun. The dots on the inter-radials from 

 6 to 7 in o*oi m.m. A series of marginal oblong beads exist. 



