18 Spong. 
SPONGIjE. 
Genus 1. Myxilla (0. Sdt.), p. 470. M. cligitatci, n. sp., 
M.paucispinata , n. sp., M. mollia , n. sp., M. 
spongiosa , n. sp., M. hastata , n. sp., M. 
cribrigera , n. sp., M. fusca, n. sp., M. 
mariana , n. sp., M. compressa , n. sp., 4/. 
nobilis , n. sp., J/. frondosa , n. sp. 
Genus 2. Clatliria (0. Sdt.), p. 474. (7. lendenfeldi , n. sp , 
<7. elegantida , n. sp., C.? inanchorata, n. sp. 
Genus 3. Paphidopldus (Ehlers), p. 475. R.filifer, n. sp. 
Genus 4. Plumohalichondria (Garter), p. 475. P. 
mammilata (Crtr.). 
Genus 5. Plocamia (0. Sdt.), p. 475. P. coriacea (Bwk.). 
Genus 6. Jcanius (Gray), p. 47G. A. ternatw (Ridley). 
Genus 7. Echinoclathria (Crtr.), p. 476. E. carteri , 
n. sp., E. glabra , n. sp. 
Genus 8. Agelas (Duch. & Mich.), p. 476. A. mauri- 
tianus (Crtr.). 
Genus 9. Echinodictgum (Ridley), p. 477. E. rugosum y 
n. sp , E. asperum , n. sp. 
Fam. 4. Axinellidcc. Skeleton typically non-reticulate, consist- 
ing of ascending axes of fibres from which arise 
subsidiary fibres radiating to the surface. Fibres 
typically plumose. Skeleton spicules chiefly acuate; 
acerates and cylindrical may also be present. Flesh 
spicules rarely present, never anchorates. 
Genus 1. Hymeniacidon (Bwk.), p. 477. H . caruncida 
(Bwk.), 11. subacerata , n. sp. 
Genus 2. Phalcellia (Bwk.), p. 478. P. jlabellala , 
n. sp., P. papyracea , u. sp. 
Genus 3. Ciocalypta (Bwk.), p. 478. C. hyaloderma , 
n. sp., C. amorphosa , n. sp. 
Genus 4. Acanthella (O. Sdt.), p. 479. A. pidcherrima, 
n. sp. 
Genus 5. Axinella (0. Sdt.), p. 479. A. ar borescens, n.sp., 
A. balfourensis } n. sp., A. mariana , n. sp. 
A. profunda, n. sp., A. fibrosa, n. sp., A . 
reticulata , n. sp., A. monticularis , n. sp., 
A. ? luncecharta , n.sp., A .? tubulosa , n.sp., 
.4 . ? paradoxa , n. sp. 
Genus 6. Paspalia (Nardo), p.482. i?. temds, n. sp., P- 
fiagelliformis, n. sp., P. ? rigida. n. sp. 
Genus 7. Dendropsis, n. g., p. 483. D. bidentifera , n. sp. 
Genus 8. Thrinacophora (Ridley), p. 483. T. cervi- 
cornis, n.sp., T. funiformis. 
Sub-order ir. Clavulina (Yosmaer). Typically corticate ; skeleton 
typically radiate ; skeleton spicules almost always 
spinulate. Flesh spicules may be present, but never 
anchorates. 
Fam. 1. Suberitidce. Without flesh spicules. 
