3fi0 SIR SIDNEY F. HARMER ON 
Fig. 22. — Menipea marionensis (Simon's Bay, S. Africa, ' Challengei-,' B.M. 87.12.9.99 ; 
found with M. triseriata). Basal view, showing 4 internal avicularia (i.av.) ; 
l.av., lateral aviculariuni. Obj. A. 
Fig..23.— ilffH(;)efl vectifeva, n. sp. (New Zealand, B.M. 99.5.1.630). Frontal view. Obj. A. 
Fig. 24. — Amastigia nuda (Tierra del Fuego, B.M. 54.11.15.87, type-specimen). Diagram 
of basal surface ; l.av., lateral aviculariuni ; 1, 5, marginal zooecia ; 3, median 
zoceci'im ; 2, 4, submedian zoceeia. 
Fig. 25. — Amastigia nuda (Victoria, B.M. 97.5.1.246). Basal view of a 5-serial branch, 
showing 4 basal avicularia and 2 ovicella on marginal zocBcia. Ob.j. A. 
Fig. 26. — A^nastigia rudis (Victoria, B.M. 97.5.1.462). Frontal view, showing gigantic 
frontal avicularia on the marginal zooecia. Obj. A. 
Fig. 27. — Amastigia rudis. Basal view of the same branch, a seta having been inserted 
from another specimen which was not cleaned with Eau de Javelle. Obj. A. 
Plate 18. 
All the drawings are from specimens which had been boiled with Eau de Javelle, after 
which treatment the longitudinal rows can be separated by gentle pressure of a needle on 
the basal surface. The drawings were made with a C objective and reduced to one-third 
their original size. 
Fig. 28. — Metiipea rohorata (Australia, B.M. 50.5.2.2). Lateral view of two zooecia, with 
ovicells (oc.) and frontal avicularia [f.av.) ; l.r.p., lateral rosette-plates; sp., base 
of spine ; i.sp., internal calcareous spines. 
Fig. 29. — Menipea rohorata (same slide). Lateral view of two zooecia without ovicells; 
f.av., frontal avicularium ; i.av., internal avicularium ; t.r.p., terminal rosette- 
plate. 
Fig. -30. — Mejiipca rohorata (same slide). Frontal view; cr., the part of the cryptocyst 
which overlies the internal avicularium (i.av.), of which the proximal end (p.) 
is seen partly through the frontal wall and partly through the lateral wall of the 
zocecium; i.c.^;., terminal rosette-plate. 
Fig. 31.- — Menipea ligulata (Victoria, B.M. 97.5.1.454). Lateral view, showing two ovicells, 
a frontal avicularium, and a strong calcareous process {c.p.) projecting vertically 
into the body-cavity at the proximal end of the opesia. 
-Menipea spicata (Victoria, B.M. 83.10.15.46). Lateral view of two zooecia without 
ovicells; f.av., frontal avicularium; i.av., internal avicularium. 
-Menipea ligulata (Victoria, B.M. 97.5.1.454). Frontal view of a zocecium with 
an ovicell and an internal avicularium (i.av.). 
-Menipea spicata (same slide as fig. 32). — Lateral view of two zooecia, each with 
an ovicell produced into a conspicuous spike. 
-Menipea spicata (same slide). Basal view ; two of the zooecia with internal 
avicularia (i.av.) ; r., origin of marginal rootlet. 
-Menipea vectifera, n. sp. (New Zealand, B.M. 99.5.1.630). Basal view of two 
zoceeia, one with an internal avicularium (i.av.). 
-Menipea vectifera, n. sp. (same slide). Basal view of two zoceeia, showing the 
characteristic calcareous bars (c.h.) projecting into the body-cavity from the 
proximal cryptocyst. 
-Menipea vectifera, n. sp. (same slide). Basal view, showing the large basal 
avicularium (b.av.) at the bifurcation;- l.av., lateral avicularium. 
-Menipea vectifera, n. sp. (same slide). Lateral view of two zooecia, showing an 
ovicell, two frontal avicularia, and the characteristic internal calcareous bars. 
Fig. 
32.- 
Fig. 
33. 
Fig. 
34. 
Kg. 
35. 
Fig. 
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Fig. 
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Fig. 
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