 ... etc. But in the Articulates this symmetry is extended even to some of these internal organs. 388. The Articulata are commonly divided into seven classes. 1. Insects. These have the three divisions of the body, the head, the thorax or chest, and the...  Transactions of the Illinois Natural History Society - Page 104by Illinois Natural History Society - 1861 - 194 pagesFull view - About this book
 | Worthington Hooker - Animals - 1860 - 384 pages
...the body, the head, the thorax or chest, and the abdomen. They have antennae or feelers on the head, three pairs of legs, and generally one or two pairs of wings. 2. Myriapoda, the Centipedes. They have no separation of the body into thorax and abdomen. The head,... | |
 | Illinois State Agricultural Society - Agriculture - 1861 - 736 pages
...(Mammalia,) or the Bird class (Aves,) etc. The term insect, (whick includes all in the class Jnsecia,) at the present day, is limited to those animals with...which the following names have been given — the eyy, the larva, the pupa, and the imayo or perfect insect. The egg is the first form in which they... | |
 | Worthington Hooker - 1870 - 400 pages
...the body, the head, the thorax or chest, and the abdomen. They have antenna? or feelers on the head, three pairs of legs, and generally one or two pairs of wings. 2. Myriapoda, the Centipedes. They have no separation of the body into thorax and abdomen. The head,... | |
 | Worthington Hooker - Zoology - 1872 - 396 pages
...the body, the head, the thorax or chest, and the abdomen. They have antennae or feelers on the head, three pairs of legs, and generally one or two pairs of wings. 2. Myriapoda, the Centipedes. They have no separation of the body into thorax and abdomen. The head,... | |
 | Henry Kiddle, Thomas F. Harrison, Norman Allison Calkins - Teaching - 1875 - 294 pages
...thorax), and the hind-body (or abdomen). The head is furnished with feelers, (antenna) ; the body supports three pairs of legs, and generally one or two pairs of wings ; the abdomen shows more or less clearly a number (seven) of rings or ]oints. In the arachnids, the... | |
 | Henry Kiddle - History - 1877 - 278 pages
...and the hind-body (or abdomen). The head is furnished with feelers, (antennce) ; the body supports three pairs of legs, and generally one or two pairs of wings ; the abdomen shows more or less clearly a number (seven) of rings or joints. In the arachnids, the... | |
| |
