. Bulletin of the British Museum (Natural History). . bi; Fig. 3. Benhamia budgetti species-group, (a) Distal ends of penial setae: (i) michaelseni- type; (2) budgetti-type. (b) Spermathecae (medio-dorsal view): (i) michaeheni-type; (2) budgetti-type. The pharynx extends posteriorly to septum 4/5. There are two gizzards, the anterior gizzard in segment v is slightly smaller than the posterior gizzard in segment vi. Each gizzard superficially resembles a mammalian heart, anteriorly there is a double, thin-walled " auricular " region and posteriorly a double, highly muscular " ven
. Bulletin of the British Museum (Natural History). . bi; Fig. 3. Benhamia budgetti species-group, (a) Distal ends of penial setae: (i) michaelseni- type; (2) budgetti-type. (b) Spermathecae (medio-dorsal view): (i) michaeheni-type; (2) budgetti-type. The pharynx extends posteriorly to septum 4/5. There are two gizzards, the anterior gizzard in segment v is slightly smaller than the posterior gizzard in segment vi. Each gizzard superficially resembles a mammalian heart, anteriorly there is a double, thin-walled " auricular " region and posteriorly a double, highly muscular " ventricular " region. In contracted individuals, the thin-walled anterior half lies partly dorsal to the muscular, posterior half which is inclined antero-dorsally. Numerous tendinous strands pass posterolaterally from the gizzards to the body wall throughout the oesophageal region. The oesophagus extends to segment xvii and the intestine begins in segment xviii. The anterior region of the intestine is swollen and its bulk displaces septum 17/18 anteriorly so that superficially the con- tents of segment xvii appear to have been suppressed. The swollen region is thick- ened inter-segmentally to septa 25/26-28/29. The two hindermost intersegmental thickenings tend to coalesce to form the posterior limit of a crop-like region. The typhlosole arises as a low ridge in segment xviii but it increases in height until by segment xxiv it is equal to about half the internal diameter of the 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 British Museum (Natural History). London : BM(NH)
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Keywords: ., 1968, boo, bookauthorbritishmuseumnaturalhistory, bookcentury1900
