On new and little-known Mantide. 143 
ealcite in the lower part, widening towards the upper part, 
indicative of their having formed portions of the excretory canal- 
system. Half the natural size. 
Fig. 3. The same. Portion of the lower surface, including the smaller 
excavation and stem-like process. a, excavation ; 6, stem-like 
process. Half the natural size. 
Fig. 4. The same. Separate granule of calcite, much magnified, to show 
more or less longitudinal sections of spicules in it. Diagram. 
Spicules on the scale of 1-48th to 1-1800th inch. 4, calcite ; b, 
spicules, variable in length and transverse diameter. 
Fig. 5. The same. Example of the staple form of a perfect spicule found 
in the heterogeneous sandy material filling the interstices be- 
tween the “granules” near the surface. Scale 1-48th to 
1-1800th inch. 
Fig. 6. The same. Portion of the surface of the larger excavation, show- 
ing the broken ends or transverse sections of the spicules (fig. 1, a). 
a, ends on a level with the surface ; 6, ends protruding. Scale 
of spicules 1-48th to 1-1800th inch. 
Fig. 7. Dysidea antiqua, n. sp. (Siliceous.) Showing general form of 
most perfect specimen, and portion of reticulated surface. X 2. 
a, portion of reticulated surface. 
Fig. 8. The same. Portion of the reticulated structure, much magni- 
fied, showing :-—a a, the fibre composed of heterogeneous mate- 
rial; 6b, the interstices; c, fragments of cylindrical spicules 
in the fibre ; d, fragments of lithistid-like fibre. Diagram. 
Fiy. 9. Thesame. A few of the fragmentary spicules washed off the fibre 
and mounted in balsam, to show that the fibre is heterogeneously 
composed. a, smallest four-armed anchoring-spicule seen; 
b, (?) branch of lithistid sponge-spicule. Scale 1-96th to 
1-6100th inch. 
Budleigh-Salterton, 
28th November, 1877. 

XVI.—Notes on new and little-known Mantide. By Prof. 
J. Woop-Mason, Deputy Superintendent, Indian Museum, 
Calcutta. 
1. Huchomena thoracica. 
Mantis (Thespis) thoracica, De Haan, Orthopt. Orient. p. 94, 2. 
Phasmomantis? thoracica, Saussure, Mélanges Orthopt. 1. 8° fase. p. 192 
(44) ; ibid. p. 403 (279). 
Fischeria thoracica, Saussure, op. cit. ii. 4° fase. p. 58. 
Euchomena? macrops, Saussure, op. cit. i. 3° fasc. p. 196 (48), 3d. 
“ Femina, Alis abbreviatis, hypothoracem non superantibus, imma- 
culatis ; prothorace longissimo, integro ; femoribus anticis intus 
pallidis, fasciis tribus fuscis; pedibus posticis nigro marmoratis ; 
cercis analibus cylindricis. Long. proth. 2; abdom. 15’”; 
ely. 6°... Hab.?” 
Hab. A specimen of the female was captured several years 
ago by my native collector in Johore, Malay peninsula ; and 
