Fowler. 



TRANS. LINN. SOC. SER. 2, ZOOL. VOL. X. PL 5. 



G. H. Powk-r del. 



BISCAYAN CH^TOGNATHA. 



Figs. 16-2L Sagitta macrocephala ; 22-27. Sayitta .ytesios ; 28-31. Sagitta bipunctata; 



32-35. Sagitta decip'ens. 



Langlcj photoso 



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