SMITHSONIAN CONTRIBUTIONS TO KNOWLEDGE, VOL. XXxXill. PLaTe 4 
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BALAENOPTERA PHYSALUS (L.). 
Fig. 1.—Type of B. tectirostris (Cope). Fig. 2.—Cape Cod, Mass., No. 16045 U.S. N. M. Fig. 3.—Cape Cod, Mass., No. 16039 Ue SaNoM: 
Fig. 4.—Type of B. tectirostris (Cope); first rib, first lumbar vertebra, first dorsal vertebra, axis. 
