SIPHONARIA. Panama Shells. 239 



Habitat Panama ; Cuming ! Sowerby : also Eeeve : Miiller. 



Mazatlan ; Melchers ! Menke. 



Mazatlan ; Lt. Green ! Mus. Essex Inst. 



Panama ; Jay. 



Panama ; C. B. A. ! 



We collected 142 specimens on a ledge of rocks nearly three 

 miles east of Panama. 



362. Siphonaria characteristica. 



Synonymy. 



Siphonaria character is tica Reeve in Proc. Zool. Soc. Lond. p. 49. Mar. 1 842. 

 Reeve Conch. Syst. pi. 138. f. 3. 1842. 



Station. On rocks above and below half tide level. 



Habitat. Bay of Panama ; Cuming ! Keeve. 



Bay of Panama ; Jay. 



Taboga ; C. B. A. ! 

 70 specimens were collected. 



363. Siphonaria costata. 



Synonymy. 

 Siphonaria costata Sowb. in Proc. Zool. Soc. Lond. p. 6. Jan. 1835. 



Station. On rocks in exposed situations at low water ; Cum- 

 ing! Sowerby. 



Habitat. Guacomayo ; Cuming ! Sowerby. 



Guacomayo ; Jay. 



Panama ; C. B. A. ! 

 Only 1 specimen was found. 



364. Siphonaria gigas. 



Synonymy. 



Si}}honaria gigas Sowb. Tank. Catal. App. p. 6. No. 808. 1825. 



- Reeve Conch. Syst. pi. 138. f. 6. 1842. 



Val. Voy. Venus. Moll. pi. 12, 13. 1846. 



