. A textbook of invertebrate morphology [microform]. Invertebrates; Morphology (Animals); Invertébrés; Morphologie (Animaux). 604 IN VERTEBRA TE MORPHOLOG Y. t The bloocl-spiices iu the proLoscis-ghmd commuuicate with the heart, aud the dorsal aud ventral vessels of the collar uinl truuk are imited by a double set of tine lacunar capillaries, one set being situated in the body-wall, and the other in the. cop — colliii-cceloin. ' (j — tongue-bill- of skeleton. ]i = lieurt. Jal = bnuicliial valve. kh - portion of oesophagus. ks — bnaichial septum. kp = branchial porv. Im — loiigiiudiu
. A textbook of invertebrate morphology [microform]. Invertebrates; Morphology (Animals); Invertébrés; Morphologie (Animaux). 604 IN VERTEBRA TE MORPHOLOG Y. t The bloocl-spiices iu the proLoscis-ghmd commuuicate with the heart, aud the dorsal aud ventral vessels of the collar uinl truuk are imited by a double set of tine lacunar capillaries, one set being situated in the body-wall, and the other in the. cop — colliii-cceloin. ' (j — tongue-bill- of skeleton. ]i = lieurt. Jal = bnuicliial valve. kh - portion of oesophagus. ks — bnaichial septum. kp = branchial porv. Im — loiigiiudiuul umst'les. nc = uotoeliord. nd = dorsal nerve. no = ventral nerve. 0 = a-sojiiiagus, pc = pioboscis-coeloui. pfl — proboscis-gland. ps = proboscis-vesicle. wall of the intestine. The blood is a colorless coagulable fluid, apparently destitute of corpuscles. In the posterior portioJi of the proboscis is found a plate of chitiuliko material produced into two horns posteriorly, and frequently somewhat hollowed out in front. It is evi- dently supportive in luiietioii, and forniK the proboscis-skele- ton. In connection with tlie branchial slits a similar chitiiioiis skeleton is formed (Fig. 276) consisting of a series of tiiii verse bars placed cn'er each septum between adjacent slits From the middle of each bar a rod (really double) passi down each septum (.sA), ixJuI from the extremities a bar (// passes into each of the adjacent tonguelike calves, each valv. thus possessing a ))ar from the arch lying in front of it ;;ii' another from that lying behind it. The septal bars ami ti is-l. 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 McMurrich, J. Playfair (James Playfair), 1859-1939. New York : H. Holt
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Keywords: ., bookcentury1800, bookdecade1890, bookpublishernewyo, bookyear1896
