|
Books > Science & Mathematics > Biology, life sciences > Hydrobiology > Marine biology
|
Buy Now
A Monograph On The Sub-Class Cirripedia - With Figures Of All The Species (1854) (Paperback)
Loot Price: R1,455
Discovery Miles 14 550
|
|
|
A Monograph On The Sub-Class Cirripedia - With Figures Of All The Species (1854) (Paperback)
Expected to ship within 10 - 15 working days
|
Purchase of this book includes free trial access to
www.million-books.com where you can read more than a million books
for free. This is an OCR edition with typos. Excerpt from book:
Class?CRUSTACEA. Sub-Class?Cirripedia. Crustacea attached by the
anterior end of the head, by cement proceeding from a modified
portion of the ovaria; archetype composed of seventeen segments,
with the three first of large size, and almost always developed
into a carapace, not wholly exuviated, and capable of various
movements; antenna none; eyes rudimentary; mouth prominent, formed
by the partial confluence of the labrum, palpi, mandibles, and two
pairs of maxilla; thorax attached to the internal sternal surface
of the carapace, generally bearing six pairs of captorial,
biramous, multi-articulated limbs; abdomen generally rudimentary;
branchiae, lohen present, attached to the under sides of the
carapace; generally bisexual, when unisexual, males epizoic on the
female; penis single, generally probosciformed, seated at the
posterior end of the abdomen; oviducts none; metamorphoses complex.
Within the memory of many living naturalists, Cirripedes were
universally looked on as belonging to the Molluscous kingdom; nor
was this surprising, considering the fixed condition of their
shells, and the degree of external resemblance between, on the one
hand, Lepas and Teredo, and on the other hand, between Balanus and
a Mollusc compounded of a patella and chiton. It is remarkable that
this external false appearance overbore, even in the mind of
Cuvier, his knowledge of their internal structure, namely, their
lateral jaws, articulated appendages, and regular gan- glionic
nervous system, which now strike us as such conclusive evidence of
their position in the great Articulate kingdom. Straus was, I
believe, the first who, in 1819, maintained that Cirripedes were
most closely allied to Crustacea. But this view was disregarded,
until J. Vaughan Thompson'sf capital discovery, in 1830, of...
General
Is the information for this product incomplete, wrong or inappropriate?
Let us know about it.
Does this product have an incorrect or missing image?
Send us a new image.
Is this product missing categories?
Add more categories.
Review This Product
No reviews yet - be the first to create one!
|
You might also like..
|
Welcome to Loot.co.za!
Sign in / Register |Wishlists & Gift Vouchers |Help | Advanced search
