. Text book of zoology. Zoology. 214 Arthropoda. Class 1. Crustacea. Order 4. Isopoda. The body is dorso-ventrally compressed, enclosed in a hard, often brittle, dermal skeleton; the abdomen is short, at most with six segments, for the last (seventh) is absent. Of the remaining segments the terminal one is usually large : owing to fusion there often appear to be fewer than six. The carapace is absent; the eyes (lateral) are sessile, the exopod of the second antenna is usually wanting. The first thoracic segment is fused with the head, but the remaining seven are free, movable, and well develop
. Text book of zoology. Zoology. 214 Arthropoda. Class 1. Crustacea. Order 4. Isopoda. The body is dorso-ventrally compressed, enclosed in a hard, often brittle, dermal skeleton; the abdomen is short, at most with six segments, for the last (seventh) is absent. Of the remaining segments the terminal one is usually large : owing to fusion there often appear to be fewer than six. The carapace is absent; the eyes (lateral) are sessile, the exopod of the second antenna is usually wanting. The first thoracic segment is fused with the head, but the remaining seven are free, movable, and well developed. The first thoracic appendage is modified as a maxilli- ped; its inner edge is usually provided with hooks, by means of which it may be coupled with its fellow. The other seven pairs of. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Boas, J. E. V. (Johan Erik Vesti), 1855-1935; Boas, J. E. V. (Johan Erik Vesti), 1855-1935. Lehrbuch der Zoologie. London, Sampson Low, Marston
Size: 1109px × 2253px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectzoology, bookyear1896
