472 MOLLUSCA. 
p. 119, t. 10. figg. 7-9"; Strebel, Beitr. Mex. Land- und Siissw.-Conch. i. p. 60, t. 1. 
figg. 39, 39a”; Fisch. & Crosse, Miss. Scient. Mex., Moll. ii. p. 480, t. 58. figg. 1, La-f, 
2,2a”. 
Riesige Neritine, Stoll, Guatemala, Reisen und Schilderungen, 1886, p. 461”. 
Shell globose, with shortly prominent spire, olivaceous-green, with very numerous fine black lines across the 
whorls; suture black, somewhat ragged in the last whorl. Columellar area very convex, white or pale 
yellowish. Size very variable. 
Diam. maj. 23, min. 16, alt. 22, marg. colum. 123, lat. arew 9 millim. (Strebel). 
» 21, 4 14, 5 204, 7 1 )~=S 8, ~— (coll. Piitel). 
99 18, ” 123, 99 17, 29 10, 29 7 99 
. 15, ,, 10, ,, 144, . 9, 4 54 4 (coll. Albers). 
Hab. Cuntrat Mexico: Sayula, State of Jalisco (Hége). 
E. Mexico: Tampico (Von dem Busch, coll. Dunker and coll. Albers'° 11); Rio de 
Tecoluta and at its mouth, the Barra del Rancho Nuevo (Deppe & Schiede 1°) ; 
Misantla, or more probably Jicaltepec, at the mouth of the Rio de Misantla 
(Strebel, fig. 39 a 12); Vera Cruz (Friedel !°), especially in the small stream of 
Tenoya, near its mouth, on aquatic plants, stones, rotten wood, and planks, and 
in the brook of Vergara, about two miles from the town (Strebel *); Cerro de 
Palma, near Cordova (Hége); San Carlos, nearly due east of Oaxaca (Hoge). 
S.E. Mexico: Tabasco (Hoge). 
Yucatan: Island of Carmen (Morelet }8). 
British Honpuras: Belize (Morelet’ ; Bocourt'®). 
E. GuaTEMALA: Yzabal, on the Lake of Yzabal or Golfo Dulce (SéoJé). 
The general colour of the shell varies from a pale greyish-green to a darker olivaceous or even brownish-green : 
the black lines are sometimes very fine and not easily seen; they run obliquely from above and behind to 
below and before, but with some angles and flexuosities, which are the same in neighbouring lines. 
Var. reclivata. 
Theodoxus reclivatus, Say, Journ. Acad. Phil. ii. p. 257 (1822) ». 
Nerita reclivata, var. ovale, oblongue, Récluz, Rev. Zool. 1841, p. 338”. 
Neritina reclivata (Say), Sowerby, Thes. Conch. ii. p. 533, t. 116. figg. 240, 2417; Reeve, Conch. 
Icon. ix., Neritina, t. 8. fig. 34°; v. Mart. Malak. Blatt. xii. p. 61 (1865) °; Strebel, loc. 
cit. p. 61, t. 1. fig. 395°; Troschel, Gebiss der Schnecken, ii. p. 177, t. 16. fig. 10 (radula) *. 
Neritella reclivata, Binney, Land and Freshw. Shells of N. Am. iti. p. 103, figg. 205, 206 (operculum), 
207 (radula) *. 
Neritina reclivata, var. B. conoidalis, v. Mart. in Martini & Chemnitz, loc. cit. p. 119”. 
Neritina microstoma, d’Orbigny, in Ramon de la Sagra’s Hist. fis. polit. y nat. de Cuba, Moluscos, 
p. 177, t. 17. fig. 87"; Pfr. Malak. Blatt. v. p. 49 (1858) ». 
Conoidal, somewhat acorn-shaped, the last whorl narrowed conspicuously in its upper half and the spire a little 
more produced ; otherwise not different from the type, and connected with it by intermediate forms. 
Diam. maj. 15, min. 104, alt. 16, marg. colum. 73, lat. arew 6 millim. 
9” 17, 9? 13, 9 20, 39 8, 99 6 2 
99 10, 39 8, 9 15, 29 63, ry) 4 ” 
18, 9 15, ” 23, ” 10, 9 7 ov) (Tampico). 
