GUDE: ON THE GENUS STREPTAXIS AND ITS ALLIES. 239 
Helix trochilionoides, Pir.: Chemn. Conch. Cab., 2nd ed., Helix, vol. ii 
(1853), p. 1138, pl. Ixxxv, figs. 27-29. 
Helix (Hyalina) trochiliodes, Albers: Die Heliceen, 1850, p. 67. 
Hyalina trochilionerdes, Pfr.: Malak. Blatt., vol. 1 (1855), p. 124, 
No. 476. 
Helicella trochilioides, H. & A. Ad.: Genera, vol. ii (1858), p. 119. 
Helicella trochilionerdes, Chenu: Man. de Conch., 1859, p. 424, 
fig. 3139. 
Streptaxis trochilionoides, Mart.: Malak. Blatt., vol. xv (1868), p. 182. 
Streptaxis trochilioneides, Tryon: Man. Conch., ser. m1, vol. i (1885), 
p. 65, pl. xiii, figs. 49-51. 
Helix (Ammonoceras) trochilionecdes, Lubomirski: Proc. Zool. Soc., 
18795 plo. 
Happia trochilioides, Bourg.: Moll. Afr. équat., 1889, p. 40. 
Happia trochilionerdes, var., Ancey: Boll. Mus. Torino, vol. xii (1897), 
No. 309, p. 8. 
Hab.—Bolivia: Laguna (Orb.). Peru: Lima (Hid., Lub.). 
Argentina: Tala, proy. Salta (Ancey). 
8. Scotoponta Paracuayana, Pfeiffer. 
Helix Paraguayana, Pfr.: Symb., vol. ii (1842), p. 93; id., Mon. Helic., 
vol. i (1848), p. 85 ; Reeve, Conch. Icon., Helix, 1854, pl. ccix, 
fig. 1479. 
Petasia Paraguayana, Pfr.: Malak. Blatt., vol. ii (1855), p. 128. 
Patula Paraguayana, Doring: Jahrb. Deutsch. Malak. Ges., 1878, 
p. 182. 
Hyalinia Paraguayana, Doring: Period. Zool. Buenos Ayres, vol. i 
(1874), p. 114; Tryon, Man. Conch., ser. u, vol. ii (1886), 
pe lio, ple lng, fig. 57. 
Scolodonta Paraguayana, Bourg.: Moll. Afr. équat., 1889, p. 42. 
Hyalinia (Conulus) Paraguayana, Paravicini: Boll. Mus. Torino, 
vol. ix (1894), No. 181, p. 2. 
Helix elevata, Orb. (not of Say): Mag. de Zool., vol. v (1885), Moll. 
p. 6; id., Voy. Amér. mérid., 1837, p. 254, pl. xxviii, figs. 5-8. 
Hab.—Paraguay: Montevideo (Orb.) ; San Pedro (Paray.). 
9. Scotoponta orBicuLa, Orbigny. 
Helix orbicula, Orb.: Mag. de Zool., vol. v (1835), Moll. p. 6; id., 
Voy. Amér. mérid., 1837, p. 250, pl. xxvii, figs. 16-19; Pfr., 
Mon. Helic., vol. i (1848), p. 111; id., Chemn. Conch. Cab., 
2nd ed., Helix, vol. ii (1853), p. 101, pl. Ixxxiii, figs. 32-34; 
Desh., in Fér., Hist., vol. i (1850), p. 86, pl. lxxxiii, figs. 5, 6; 
Reeve, Conch. Icon., Helix, 1852, pl. evii, fig. 602. 
Helix (Patula) orbicula, Albers: Die Heliceen, 1850, p. 65. 
Hyalina orbicula, Pfr.: Malak. Bliatt., vol. 11 (1855), p. 124, No. 464. 
Discus orbicula, H. & A. Ad.: Genera, vol. 11 (1858), p. 117. 
Streptaxis orbicula, Mart.: Malak. Blatt., vol. xv (1868), p. 182; 
Tryon, Man. Conch., ser. mu, vol. i (1885), p. 65, pl. xiii, 
figs. 35-37. 
Happia orbicula, Bourg.: Moll. Afr. équat., 1889, p. 40. 
Hab.—Bolivia: Santa Cruz (Orb.). 
