United States National Museum, Smithsonian Institution, United States. Dept. of the Interior · Washington : Smithsonian Institution Press, [etc.]; for sale by the Supt. of Docs., U.S. Govt Print. Off. · leaf 228
214 U.S. NATIONAL MUSEUM BULLETIN 271 … a oe Ficure 89.—Eusiridae: a, Rhachotropis aculeata (Lepechin) (Sars, 1895, pl. 149); b, Eustrus cuspidatus Krdéyer (Sars, 1895, pl. 146). Kinds of accessory flagella: c, Liouvillea oculata Chevreux (1912b); d, Rhachotropis; e, fused process, Prostebbingia gracilis (Chevreux, 1912b); f,…
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