Peneroplis pertusus, Forskäl. N) 
Peneroplis arietinus, Parker, Jones and Brady, 1865, Ann. and 
Mag. Nat. Hist., ser. 3, vol. XVI. p. 26, pl. 1. fig, 18. 
d) Stout cerosier-shaped specimens, circular in section, Pl. XIII. fiss. 20, 21. 
(Unser Fig. 23, 24 etwa.) 
Type—Peneroplis eylindraceus, Lamarck, sp. 
Nautilus (Lituus) arietinus (pars), Batsch, 1791, Conch. des Seesandes, 
pe 4, pl Vena dgezr 
Spirolina (Spirolinites) eylindracea, Lamarek, 1804, Ann. du Museum, 
vol. V.5p- 12455. N0.r2. 
Spirula eylindracea, Blainville, 1824, Diet. Sci. Nat., vol. XXXI. 
p- 190; — Malacol., p. 382, pl. V. fig. 1. 
Spirolina cylindracea, d’Orbigny, 1826, Ann. Sci. Nat, vol. VI. 
p- 286, No. 1; — Modele, No. 24. 
Spirolina (Spirolinites) eylindracea, Defrance, 1827, Diet. Sci. Nat., 
vol 19.7218, pl RI 101. 
Spirolina elavata, COrouch., 1827, Illust. Introd. Lam. Conch., p. 40, 
pl. XX. fig. 8. 
Coseinospira hemprichü, Ehrenberg, 1839, Abhandl. d. k. Akad. 
Wiss. Berlin for 1838, pl. II. fig. 2, a. b. ete. 
Spirolina austriaca, d’Orbieny, 1846, For. Foss. Vien., p. 137, pl. VII. 
fies. 7—9. % 
Spirolina hemprichü, Parker, Jones and Brady, 1865, Ann. and 
Mag. Nat. Hist., ser. 3, vol. XV. p. 230. 
Spirolina lituus, Id. Ibid. vol. XVI. p. 35, pl. I. fie. 19. 
e) Long, delicate, crosier-shaped specimens, Pl. XIII. fies. 24, 25 (?). 
(Unser Fig. 9, 13, 14 etwa.) 
Type- Peneroplis lituus, Gmelin, sp. 
Nautilus Iituus, Linne and Gmelin, 1788, Syst. Nat., 13 ed., p. 3372, 
No. 13. 
Nautilus (Lituus) acicularis, Batsch, 1791, Conch. des Seesandes, p. 4, 
plovlsuo 16 aob: 
Spirolina longissima, Costa, 1856, Atti dell’ Accad. Pontan., vol. VII. 
p- 225, pl. XX. fie. 11. 
Peneroplis laubei, Karrer, 1868, Sitz. d. k. Akad. Wiss. Wien, vol. LVII. 
p. 154, pl II. 52. 8. 
f) Stout nautiloid form, often with limbate sutures and without surface striation, 
Pl. XIII. fig. 14. (Unser Fig. 1, 15, 26, 36, 45, 46, 47, 248 etwa.) 
Dreyer, Peneroplis. 2 
