394 
Zoologie. 
Mollusca. 
6017 Berg, C., Geometria macrostoma (Burm.) Berg y Thalassopliryne Montevidensis 
Berg, dos peces particulares. La Plata 1893. gr. in-fol. 7 pg. avec 2 planches. M. 6 
6018 Cederström, C., Handledning i Fiskevard, afsedd för Aegare af mindre Fiske- 
vatten samt Fiskare. Stockholm 1893. 8. 75 pg. Iso 
6019 Eigenmann, C. H., On the occurrence of the spiny Boxfish (genus Chilomyc- 
terus) on the coast of California. Washington (Proc. U. S. Nat. Mus.) 1892. 8. 
1 pg. with 1 plate. 0c.o 
6020 Jordan, D. S., A description of the Golden Trout of Kern River, California, Salmo 
mykiss aguabonita. (Washington, Proc. Nat. Mus. 1893.) 8. 3 pg. O 30 
6021 Jordan, D. S., and Gilbert, C. H., Descriptions of new species of - Cyprinoid Fish, 
Couesius Greeni, from the Ilead Waters of Frazer River in British Columbia. Note 
on Pollachius chalcogrannnus Fucensis of Puget Sound. (Washington, Proc. Nat. 
Mus. 1893.) 8. 4 pg. O.o 
6022 Marion, A. F., Effet du froid sur les Poissons marins. — Nouvelles observations 
sur la Sardine de Marseille. (Paris, Cptes.-r. Ac. 1892.) 4. 7 pg. 1 
6023 Nickerson, W. S., The development of the Scales of Lepidosteus. Cambridge U. 
S. (Bull. Mus. Comp. Zool.), July 1893. roy. 8. 26 pg. with 4 plates. 4 
6024 Paratre, R., Collections de Vertöbres de Chäteauroux: Poissons. Poissons du 
bassin de la Loire, particulierement des eaux du departement de l'Indre et 
des däpartements limitrophes. Fascicule 1. Chäteauroux (Bull. Mus. Chäteaur.) 
1893. 8. pg. 1-58. 4 
6025 Sanvage, H. E., La Peche ä Boulogne-sur-Mer pendant la periode decennale 
1880 — S9. Boulogne-sur-Mer 1893. 4. 10 pg. av. 2 planches. 2so 
6026 — Examen de l’etat de Maturitö sexuelle de quelques Poissons de mer. Bou- 
logne-sur-Mer 1893. 4. 16 pg. I 50 
6027 Wozelka, K., Neues Fischzucht- Verfahren verbunden mit Weiden-Cultur, basirt 
auf die natürliche Fütterung, nebst einem neuen Krebszucht-Verfahren. Wien 
1893. 8. 90 pg. m. 2 colorirfen Tafeln u. 35 Abbildungen, cart. 2so 
Molln sca (et Mollnscoidea). 
6028 Carazzi, D., Ostricultura e Mitilicultura. Milano 1893. 16. 8 e 202 pg. c. 13 
fototipie. 2äo 
6029 Collinge, W. E., On the variety cinereo-niger Wolf of Limax maximus L. (Lon- 
don, Ann. Nat. Hist. 1893.) 8. 2 pg. O 30 
6030 — On the structure and affinities of some European Slugs. (London, Concholo- 
gist, 1893.) 8. 4 pg. O 50 
6031 Davenport, G. B., Studies in Morphogenesis. I. O 11 the development of the Cerata 
in Aeolis. Cambridge U. S. (Bull. Mus. Comp. Zool.), July 1893. 8. 8 pg. with 
2 plates. 250 
6032 Mazzarelli, G., Monografia delle Aplysiidae del Golfo di Napoli. Napoli (Soc. It. 
d. Sc.) 1893. in-4. gr. 222 pg. con 13 tavole in parte colorate. 25 
6033 — Ricerche sulla Morfologia delle Oxynoeidae. Napoli (Soc. 1t. d. Sc.) 1892. in-4. 
gr. 33 pg. con 3 tavole. 5 
6034 — Ricerche sulie Peltidae del Golfo di Napoli. Napoli (Atti Acc. Sc.) 1893. in-4. 
gr. 18 pg. con 1 tavola colorata. 4 
6035 Pelseneer, P., Le Systeme nerveux streptoneure des lieteropodes. (Bruxelles, 
Bull. Soc. Malacol.) 1892. gr. in-8. 3 pg. O 30 
6036 — La Phagocytose defensive chez les Huitres vertes. (Bruxelles, Bull. Soc. Mala- 
col.) 1892. gr. in-8. 2 pg. O 30 
6037 — Sur le Coeur d'Ostrea et de Pandora. (Bruxelles, Bull. Soc. Malacol.) 1S92. 
gr. in-8. 2 pg. av. 2 figures. O 20 
6038 Platania, G., Sulla litofagia di alcuni Gasteropodi terrestri. Acireale (Acc. di Sc.) 
1890. 8. 7 pg. " 1 
6039 Willey, A., Studies Oll the Protochordata. Part II: The development of the neuro- 
hypophysical System in Ciona intestinalis a. Clavelina lepadiformis, with an ac- 
count of the origin of the sense-organs in Ascidia mentula. (London, Quart. 
Journ. Micr. Sc.) 1893. roy. 8. 39 pg. w r . 3 plates. 5so 
Part I : On the origin of the branchial Stigmata, praeoral lobe, endostyle, atrial cavities etc. in 
Ciona intestinalis L., with remarks on Clavelina lepadiformis. *44 pg. w. 2 plates. M. 4.50. 
Naturae Novitates. Jahrg. XV, No. 19. R. Friedländer & Sohn in Berlin. 
