Annals of the South African Museum, Volume 32The Museum - Natural history |
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Page 298
... fibres are attached to it ( fig . 4 ) . The proboscis coelomic cavity extends nearly to the top of the proboscis . Over its whole length it is separated into a right and a left part by a kind of dorso - ventral septum formed of ...
... fibres are attached to it ( fig . 4 ) . The proboscis coelomic cavity extends nearly to the top of the proboscis . Over its whole length it is separated into a right and a left part by a kind of dorso - ventral septum formed of ...
Page 347
... fibre layer ( fig . 49 ) . A sphincter at the base of the proboscis , such as occurs in B. clavigerus , is missing in both species . The longitudinal muscle fibres are especially numerous in the peripheral part of the proboscis in B ...
... fibre layer ( fig . 49 ) . A sphincter at the base of the proboscis , such as occurs in B. clavigerus , is missing in both species . The longitudinal muscle fibres are especially numerous in the peripheral part of the proboscis in B ...
Page 359
... fibres stop at the vascular fold surrounding the buccal cavity , and the internal fibres along the anterior funnel - like wall of the collar form another set , spreading out from the proboscis skeleton . But in B. studiosorum the ...
... fibres stop at the vascular fold surrounding the buccal cavity , and the internal fibres along the anterior funnel - like wall of the collar form another set , spreading out from the proboscis skeleton . But in B. studiosorum the ...
Contents
Saccoglossus inhacensis Kapelus | 294 |
Glossobalanus alatus n | 316 |
Kapelus occurs in countless numbers on the muddy flats west of | 399 |
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1st antennae 2nd joint 6th joint apically Balanoglossus Barnard basal membrane Bay Prof blind-pouches blind-sac body branchial pore branchial region Brnrd buccal cavity canal caudal coelomic cavity collar convex Cross-section delagoensis distal dorso-lateral elongate epidermis epistome epithelium extending external longitudinal flagellum frontal lamina genital wings glandular cells glomerulus gnathopod gonads groove hind margin hydrocephalus inner ramus Isopoda joint of peraeopod keel Keurbooms River lateral length liver region lobe longitudinal musculature lumen Maxilliped median mid-line Monod muscle fibres narrow nerve cord nuclei outer ramus palp peduncle peraeon segment pericardium perihaemal cavities pharynx pleon segment pleopods Plettenberg Bay posterior end proboscis rami ramus of uropod ridge rostral point saccules Schellenberg septum setae Side-plates skeleton slightly species specimen spines Stebb Stebbing stomochord studiosorum surface T. A. Stephenson telson telsonic apex thick tubercles uropod Vanhöffen ventral mesentery ventral pharynx Zool