214 



U.S. NATIONAL MUSEUM BULLETIN 271 



Figure 89.— Eusiridae: a, Rhachotropis aculeata (Lepechin) (Sars, 1895, pi. 149); h, Eusirus 

 cuspidatus Kr^yer (Sars, 1895, pi. 146). Kinds of accessory flagella: c, Liouvillea oculata 

 Chevreux (1912b); d, Rhachotropis; e, fused process, Prostehbingia gracilis (Chevreux, 

 1912b);/, Pontogeneoides abyssi Nicholls (1938); g, no accessory flagellum on Pontogeneia 

 inermis (Krfiyer) (Sars, 1895, pi. 159); h, Djerboa furcipes Chevreux (1906c); i, Eusirus 

 propinquus Sars (1895, pi. 147). ;', Calceolus. 



