English:
Title: The Biological bulletin
Identifier: biologicalbullet116mari (find matches)
Year: [1] (s)
Authors: Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report 1907/08-1952; Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-1983
Subjects: Biology; Zoology; Biology; Marine Biology
Publisher: Woods Hole, Mass. : Marine Biological Laboratory
Contributing Library: MBLWHOI Library
Digitizing Sponsor: MBLWHOI Library
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200 ENRIQUE BALECH to the genus Peridinium was clearly correct, but they bore only superficial re- semblances to Scrippsiella sweeneyi. The genus is named after the institution at which it was discovered, and the species is dedicated to Dr. Beatrice M. Sweeney who made the original isolation and whose cultures made this study possible. Fragilidium heterolobum n. gen. n. sp. G
Text Appearing After Image:
FIGURE 3. Fragilidium heterolobum. a) A typical individual, ventral view, b) Apical view of the epitheca. c) Sulcal plates, d) Antapical view of the hypotheca. All figures about X 1000. Diagnosis. Medium-sized, roughly roundish pentagonal in ventral view. Epitheca dome-shaped; hypotheca asymmetrically bipedal, the left lobe being the largest. Cingulum deeply impressed, subcentral, descending, displaced distally about one girdle width, without lists. The cingulum has eleven sub-equal rec- tangular plates plus a transitional plate at the right end. Sulcus narrow, only slightly excavated, with six plates. Theca easily exuviated. Cell length 53-56 ^,
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