. The Cambridge natural history. Zoology. Pig. 163.âInternal anatomy of Lepidoptera. Section of the body of a female butterfly Anosia pUxippas. (After Seudder.) The portion to the left of the vertical line more magmiied. I. II. III. thoracic segments ; 1-9, abdominal segments ; a, antenna ; a, anus ; ac, aortal chamber ; ac/, etc., abdominal ganglia ; agl^, agP accessory glands ; ao, aorta ; hr, brain ; e, colon ; cp, copulatory pouch ; cx^, cx\ ex', coxae ; fr, food-reservoir ; r/, suboesophageal ganglion ; h, dorsal vessel ; i intestine ; Im, area filled by wing muscles ; Lor, ovary, or egg-


. The Cambridge natural history. Zoology. Pig. 163.âInternal anatomy of Lepidoptera. Section of the body of a female butterfly Anosia pUxippas. (After Seudder.) The portion to the left of the vertical line more magmiied. I. II. III. thoracic segments ; 1-9, abdominal segments ; a, antenna ; a, anus ; ac, aortal chamber ; ac/, etc., abdominal ganglia ; agl^, agP accessory glands ; ao, aorta ; hr, brain ; e, colon ; cp, copulatory pouch ; cx^, cx\ ex', coxae ; fr, food-reservoir ; r/, suboesophageal ganglion ; h, dorsal vessel ; i intestine ; Im, area filled by wing muscles ; Lor, ovary, or egg-tubes of left side ⢠mv, Malpighian tube (the two others of the right side cnt away, except small por- tions) ; mx, maxilla ; o, oviduct ; oo, its orifice ; oe, oesophagus ; ovx, end of left ovary ; p, labial palp ; jA pharynx ; , terminal parts of riglit ovarian tubes turned to one side, after the tubes have been cut away ; sd, salivary duct â sql salivary gland ; sp, spermatheca ; st, stomach ; tg, thoracic ganglia ; r, copulatory orifice. D o . 1 J at the extremity of the body to form a rectum. The dorsal or circulatory vessel commences near the posterior extremity of the body, but in the front part of the abdomen is deflexed to pass under the great phragma into the thorax, where it rises abruptly to the dorsal wall, but is again abruptly deflexed, forming a loop, and is then prolonged above the oesophagus into the head: at the summit of the thoracic loop there may be a dilatation called the aortal chamber. The supra- and infra-oesophageal ganglia are consolidated into a mass pierced by the oesophagus: there is a minute frontal ganglion; the ventral chain consists of three much approximated thoracic ganglia and four abdominal ganglia separated from the thoracic by a long 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 perfe


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Keywords: ., bookcentury1800, bookdecade1890, booksubjectzoology, bookyear1895