1913.] NATURAL SCIENCES OF PHILADELPHIA. 635 



Two mature specimens "from the interior of the State of Ceara" 

 were sent by Mr. Rocha and one mature specimen taken on the 

 Serra de Ibiapaba, State of Ceara, and an immature specimen taken 

 on the Rio Maccurii were sent from the Goeldi Museum. 



BULIMULID^. 



Genus PLEKOCHEILUS Guilding. 

 Plekocheilus (Eurytus) pintadinus (Orbigny). 



Helix pintadina Orb., Mag. de Zool., 1835, CI, V, No. 61, p. 8. 

 Bulimus pintadinus Orb., Voyage dans TAmer. Merid., pi. 29, figs. 11, 12. 

 Plekocheilus {Eurytus) pintadinus (Orb.) PiLsbrv, Man. Conch. (2), X, p. 

 93, pi. 36, figs. 84, 85. 



A single dead specimen of this handsome species, in a good state 

 of preservation, was taken near the Guajara-Assii Falls. The species 

 was described and figured from a single dead specimen, deposited 

 in the Museum of Natural History in Paris. It was taken in the 

 foot hills of Bolivia, several hundred miles from the Guajara-Assu 

 Falls. These two specimens are the only ones reported, so far as is 

 known to the writer. 



Genus BULIMULUS Leach. 

 Bulimulus (Bulimulus) ereotus (Reeve). 



Bulimus eredus Rve., Conch. Icon., pi. 58, fig. 392. 



Bulimulus {Bulimulus) eredus Rve., Pilsbrv, Man. Conch. (2), XI, p. 60, 

 pi. 10, fig. 99. 



Two specimens taken at Arumanduba, Parana de Almeirim, were 

 sent from the Goeldi Museum. 



Bulimulus (Bulimulus) tenuissimus (Orbigny). 



Helix tenuissima (Fer.) Orbigny, Mag. de Zool., 1835, p. 11 (name only). 

 Bulimus tenuissimus ("Fer. dans sa collection") Orb., Voyage, p. 272. 

 Bulimulus {Bulimulus) tenuissimus Orb., Pilsbrv, Man. Conch. (2), XI, p. 

 64, pi. 10, figs. 91, 92. 



This species was rather common at Ceara-Mirim; it was found 

 at Estremoz and Pirangy, a single specimen was taken at Maranhao, 

 six at Itacoatiara, and about twenty living specimens were taken 

 near the water works of Para. A single specimen taken at the 

 Serra do Erere was sent from the Goeldi Museum. Most specimens 

 show the spiral striation and slightly open umbilicus of B. tenuissimus, 

 and all have a very characteristic wrinkle-striate embryonic sculp- 

 ture, extending over about 1| whorls. 



Bulimulus (Rhinus) pubescens (Moricand). 



Helix {Bulimus) pubescens Moric, Mem. Soc. Phys. et Hist. Nat. Gendve 



XI, p. 157, pi. 5, figs. 21-23 (1846). 

 Bulimtdus {Rhinus) pubescens Moric, Pilsbrv, Man. Conch. (2), XI, p. 81 



pi. 13, figs. 1.5, 16, 19; pi. 15, fig. 23. ^ 



About a dozen typical specimens were taken at Ceara-Mirim. 



