Annals of the South African Museum, Volume 32The Museum - Natural history |
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Page 343
... proboscis and the end of the tail . As soon as the preserving fluid touches either of these regions they are contracted to their smallest dimensions . Thereby the top of the proboscis is often invaginated to such an extent that there ...
... proboscis and the end of the tail . As soon as the preserving fluid touches either of these regions they are contracted to their smallest dimensions . Thereby the top of the proboscis is often invaginated to such an extent that there ...
Page 348
A very large central proboscis cavity was found in B. hydrocephalus ( fig . 47 ) . It extends over the posterior two - thirds of the proboscis and has a regular conical form with the point directed anteriorly . In front of this cavity ...
A very large central proboscis cavity was found in B. hydrocephalus ( fig . 47 ) . It extends over the posterior two - thirds of the proboscis and has a regular conical form with the point directed anteriorly . In front of this cavity ...
Page 349
... proboscis at a level near anterior end of proboscis organs . × 24 . 50. Cross - section of the ventral proboscis septum . × 110. 51. Cross - section of the proboscis neck . × 40 . bm , basal membrane of the epidermis . cc , collar ...
... proboscis at a level near anterior end of proboscis organs . × 24 . 50. Cross - section of the ventral proboscis septum . × 110. 51. Cross - section of the proboscis neck . × 40 . bm , basal membrane of the epidermis . cc , collar ...
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