Hoplonemertea

Plate3.20 Fragment of the aesophageal region of the digestive tract from a living Amphiporus lactifloreus

Plate3.16 Transverse section of the posterior chamber of the proboscis in a large example of the same species

Plate3.15 Transverse section of the contracted reservoir-region of the proboscisTransverse section of the contracted reservoir-region of the proboscis of the same species, showing the complex spiral arrangement of the fibres

Plate3.14 Proboscis of an adult, gently but completely extruded under chloroform to make the central stylet prominent

Plate3.12 Stylet-region of the proboscis of a young animal of the same speciesStylet-region of the proboscis of a young animal of the same species, illustrating the first appearance of the stylets and the development of the parts

Plate3.13 Stylet-region of a young Amphiporus lactifloreus, some weeks older than that represented in the previous figure

Plate3.11 Isolated marginal stylet-sac of the same species

Plate3.10 Superficial structure of the stylet and reservoir-regions of Amphiporus lactifloreus

Plate2.5 The central and marginal stylets from a young Amphiporus lactifloreus, on the first appearance of the former

Plate2.4 Termination of the posterior chamber of the proboscis of Amphiporus lactifloreus, with muscular ribands

Plate2.3 Abnormal stylet-region in the same species

Plate2.2 Structure of the stylet and reservoir-regions in the same form

Plate2.1 Structure of the stylet-region in a large Amphiporus lactofloreus. The specimen had two marginal sacs on one side

Plate1.16 Extremity of the posterior region of the proboscis of Amphiporus lactifloreus distended with fluid

Plate1.10 Glandular papillae in the anterior region of the proboscis seen in the ordinary condition of the organ under pressure

Plate1.9 Transverse section of the same part of the proboscis

Plate1.7 Longitudinal section of the anterior region of the proboscis of Amphiporus lactifloreus

Plate1.6 Transverse section of the stylet-region of the proboscis in which the knife has pressed aside the basal apparatusTransverse section of the same region in another specimen in which the knife has pressed aside the basal apparatus of the central stylet, and in which the ejaculatory duct has been cut obliquely

Plate1.5 Transverse section of the stylet-region of the proboscis of an Amphiporus lactifloreus, in the line of marginal sacs

Plate1.3 Section of an Amphiporus lactifloreus behind the foregoing and towards the posterior end of the aesophageal apparatus

Plate1.2 Section through the body of an Amphiporus lactifloreus some distance behind the ganglia

Plate1.1 Transverse section of the cephalic ganglia of Amphiporus lactifloreus

Plate10.13 Portion of the inner surface of Amphiporus lactifloreus under pressure.

Plate10.12 Portion of the glandular of the posterior chamber of the proboscis of Amphiporus lactifloreus in its normal condition