Manual of Conchology, Structural and Systemic, Vol. 5: With Illustrations of the Species (Classic Reprint) - Brossura

Jr., George W. Tryon

Brossura

ISBN 10: 1332303684 ISBN 13: 9781332303687

Casa editrice: Forgotten Books, 2019

Riassunto

Excerpt from Manual of Conchology, Structural and Systemic, Vol. 5: With Illustrations of the Species

Species, While organisms apparently quite diverse may be treated as varieties, simply because they are united by a series of intermediate forms.

In cases Where I have no specimen of a species, I have given a translation of the original diagnosis, followed by the name of the author from whom it is taken, together with any additional inform ation I have been able to obtain concerning it.

Anatomical details have been omitted because the preceding vol umes of Helix lack them. Under these circumstances it is more convenient to present all of this part of the subject in one place. The final volume treating of Helices will therefore contain besides other matter, a résumé of the anatomy of each subgenus of the Helices. Collectors having either fresh or alcoholic material for sale or exchange are invited to correspond with the author.

In the preparation of the present volume the author has been peculiarly fortunate in the Opportunities for study afforded by a collection of West Indian Land shells perhaps the largest in exist ence; the extensive collections of robert swift and of A. D. Brown having in recent years been united to the already large suites received by the Academy from poey, arango, bland, wright, redfield, and other workers in this fauna.

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Dettagli dell?edizione

• Editore: Forgotten Books
• Data di pubblicazione: 2019
• Lingua: Inglese
• ISBN 10: 1332303684
• ISBN 13: 9781332303687
• Rilegatura: Copertina flessibile
• Numero di pagine: 222
• Contatto del produttore: non disponibile
• Persona responsabile: Bärenreiter-Verlag Karl Vötterle GmbH & Co. KG; bscheuch@baerenreiter.com; ; Heinrich-Schütz-Allee 35-37; Kassel; Germania; 34131; Germania