Bull. U. S. B. F., 1923-24. (Doc. 963.) 
Fig. 25. — Section of stomach of L. luteola 3 mm. long. A, probably Siephanodiscus sp.; B, Cosmarium 
sp.; C, E, and F, Siephanodiscus sp.; D, Cosmarium; G, probably Stephanodiscus sp. The small 
filaments are probably Odontidium sp.; H, crystalline style. X430. 
