. A textbook of invertebrate morphology [microform]. Invertebrates; Morphology (Animals); Invertébrés; Morphologie (Animaux). TYPE CliVSTACEA. 409 segment amous ap- >ug siugle- 3, the re- beiug iu ite of ap- e male the is), 3, or ") leuts may imiug-feet. \ are never be closely sven fuse<l ace of the Cliey are id of but tl in some ,' wanting, are exclu- are more ;eristic of topoda. macea the ly some <»f racic sen ee or four ;, but tlic of beinu' Duter than Is in a ter- 10 anterior id, 1[),' two ]))iirs rated from tilt! vest <it :, and only r thnracii' segments are fused
. A textbook of invertebrate morphology [microform]. Invertebrates; Morphology (Animals); Invertébrés; Morphologie (Animaux). TYPE CliVSTACEA. 409 segment amous ap- >ug siugle- 3, the re- beiug iu ite of ap- e male the is), 3, or ") leuts may imiug-feet. \ are never be closely sven fuse<l ace of the Cliey are id of but tl in some ,' wanting, are exclu- are more ;eristic of topoda. macea the ly some <»f racic sen ee or four ;, but tlic of beinu' Duter than Is in a ter- 10 anterior id, 1[),' two ]))iirs rated from tilt! vest <it :, and only r thnracii' segments are fused with the carapace, though it covers in several others. The antennules consist of an elongated three-jointed basal portion bearing three many-jointed tiagella, while the anten- n.^ are generally shorter, the exopodite being represented by a large scale. The maxillse are comparatively small, and the appendages of the five anterior thoracic appendages are crowded forwards and are termed maxillipeds, being limb- like structures destitute of exopodites, but possessing well- developed epipodites, and with the terminal joint capable of liexion upon the next succeeding one. The second maxilli- ped IS especially long and large, and with its strong terminal and penultimate joints forms a very efficient weapon fen- secur- ing prej. The three posterior appendages of the thorax are. Fig, \%i\.—Squilla mantis ffmm 'nis). a' = anteumiles. p^ ^ iDuxillipedg a^ = anteiiiiDB. p = limbs. oc = compound eyes. pa = ubdomiiml liml,s. slender biramous structures, the somewhat stronger abdomi- nal api>endageH being also biramous and somewhat lamellar swimming-feet. The last pair are especially enlarged and di- rected backwards, forming with the telson the strong tail-fin Bunches of branchial filaments occur upon the outer lamel- 1m> ol the abdominal appendages with the exception of the last ])air. The heart is much elongated, extending from the ante- rior thoracic region as far
Size: 2812px × 889px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, bookpublishernewyo, bookyear1896
