COCHLIOPHILUS DEPRESSUS GEN. NOV., SP. NOV. AND COCHIOPHILUS MINOR SP. NOV., HOLOTRICHOUS CILIATES FROM THE MANTLE CAVITY OF PHYTIA SETIFER (COOPER)

Examination of specimens of the pulmonate snail Phytia setifen (Cooper) 1 from salt marshes bordering San Francisco Bay disclosed the presence of two closely related species of flattened holotrichous ciliates within the mantle cavity. A new genus, Cochliophilus, is proposed to include these ciliates, which will be described herein as Cochliophilus depnessus gen. nov., sp. nov. and Cochliophilus minor sp. nov. I wish to express my appreciation to Professor S. F. Light and Professor Harold Kirby for their interest and helpful advice d4ring the progress of this investigation.

[1]  D. Bodian.  The staining of paraffin sections of nervous tissues with activated protargol. The role of fixatives , 1937 .

[2]  D. Bodian.  A new method for staining nerve fibers and nerve endings in mounted paraffin sections , 1936 .

[3]  G. Kidder.  STUDIES ON THE CILIATES FROM FRESH WATER MUSSELS II. THE NUCLEI OF CONCHOPHTHIRIUS ANODONTÆ STEIN, C. CURTUS ENGL., AND C. MAGNA KIDDER, DURING BINARY FISSION , 1934 .

[4]  W. D. Morgan.  Some Marine Ciliates Living in the Laboratory Tanks at Plymouth, with a description of a New Species, Holophrya coronata. , 1925, Journal of the Marine Biological Association of the United Kingdom.

[5]  C. Hentschel.  On a New Ciliate, Cryptochilum boreale nov. sp., from the Intestine of Echinus esculentus Linn., together with some Notes on the Ciliates of Echinoids , 1924, Parasitology.

[6]  Zdzisław Raabe.  Weitere Untersuchungen an parasitischen Ciliaten aus dem polnischen Teil der Ostsee. Thigmophryidae, Conchophthiridae und Ancistrumidae = Dalsze badania nad wymoczkami pasożytniczymi polskiego Bałtyku 1, Ciliata Thigmotricha aus den Familien : , 1936 .

[7]  Zdzisław Raabe.  Über einige an den Kiemen von Mytilus edulis L. und Macoma balthica (L.) parasitierende Ciliaten-Arten , 1934 .

[8]  W. Dall.  Summary of the marine shellbearing mollusks of the northwest coast of America, from San Diego, California, to the Polar Sea, mostly contained in the collection of the United States National Museum, with illustrations of hitherto unfigured species , 1921 .