206 Panama iShelh nebitid^. . 



306, IVeritina Gnayaauilensis. 



tSynonyTny. 



Neritina Guayaquilensis Sowb, Thes, Conch, p. 520, 



No. 44.pl, 114. f. 177, - - 1849. 



This may, according to Becluz, be identic^,! with N. inter- 

 media Sowb. It is certainly ideBtical with shells whipli have 

 been distributed by Mr, Cuming and by Mr. Petit under the 

 latter name, Mr. Sowerby's figures, however, seem to repre- 

 sent two species. 



Station. — ^This shell was found a little above the highest tides, 

 among sticks and leaves, in a muddy place overflowed by fresh 

 water. 



Habitat. — Eeal Llejos, Guayaquil ; puming I So^erby. 

 Panama ; 0. B. A, .1 



Two miles east of Panama we,colleeted 80 speciflaens in vari- 

 ous stages of growth, 



307, nreritina picta. 



Synonymy. 



Neritina picta (non Haening) Sowb, in Proc. Zool. Soc. 



Lond. p. 2,01. , . . r Dec. ,1832, 



- - — - Desh. in Jjan^. An. sa^s Veit- VIII. 588. 



No. 40. 1838. 



Sowb. Conch, 111. No, 35. pi. 86. f. 1. 1841. 



Desh. in Lam. An. sans Vert. III. ;Pt. 2. 



p. 479. No. 40. (Ed. tert.) - - - 1844. 

 Thes. Conch, p. 530. pi. 116. f. 267-9, 1849. 



Station. — On a mud bank partially overflowed with fresh 

 water ; Ouming ! Sowerby ; " Dans les eaux douces ; Cuming !" 

 Deshayes. On sticks ,and stones, in a grove of trees, a little 

 above half tide level : also in dirty places on rocks at or a 

 little below half tide level. According to our observations it 

 is strictly marine. 



Habitat. — Panama; Cuming! Sowerby. 

 Panama ; Eecluz : also Jay. 



