PEOTOZOA. 
671 
p. 621. Eunjpon^ Gray : E. clavatmn (Bowerb.), Gray, t. c. p. 621. Buharisj 
Gray : B. vermicularis (Bowerb.), Gray, 1. c. p. 621. Ciocalypta^ Bowerb. : 
C. penicilluSf Bowerb., Gray, 1. c. p. 622. Basalta, Gray : B. viminaltSf Sdt., 
Gray, 1. c. p. 622. Adocia, Gray ; A. shnulans (Bowerb.), Gray, 1. c. p. 622. 
JPhilotia, Gray : P. varians (Bowerb.), Gray, 1. c. p. 622. Polma, Gray ; P. 
freyerii (Sdt.), Gray, 1. c. p. 623. Suherites^ Nardo : S. suheria (Mont.), 
Gray, 1. c. p. 623. FicuUna, Gray : F. Jicm (Jobnst.), Gray, 1. c. p. 623. 
Baspalia, Nardo : B. typica, Nardo, Gray, 1. c. p. 623. Baphiopliora, Gray ! 
B. patera (Hardwicke), Gray, 1. c, p. 624. Spimdaria, Gray i S. fetheoides, 
Gray= Tethea spimdaria^ Bowerb., Gray, 1. c. p. 624. Anfho, Gray : A. in- 
volvens (Sdt.), Gray, 1. c, p. 624. Fitalia^ Gray ; P. frondiculata (Sdt.), Gray, 
I. c. p. 624. 
Fam. 10. Clioniad^e. Excavating in shells and limestone. Oscules and 
pores contractile. The pores when expanded prominent, above the sur- 
face of the shell, top flat, with a radiated opening. Oscules conical, 
tubular, with an open mouth. 
Genera \—-Cliona^ Grant ; C, Grant, Gray, 1. c. p. 626, Fione^ Gray: 
P. northumlnca (Hancock), Gray, 1. c, p. 626. Myle, Gray : M. carpmteri 
(Hancock), Gray, 1. c, p. 626. Sapline, Gray t S. grantii (Sdt.), Gray, /. c. 
p. 620. Idomon, Gray ; J. alderi (Hancock), Gray, I, c, p. 620. Jaspis, Gray : 
J, johnetonii (Sdt.), Gray, 1. c. p. 620. Pronax, Gray ; P. lobata (Hancock), 
Gray, 1. c. p. 620. Samus, Gray : S. anonyma (Bowerb.), Gray, 1. c. p. 620. 
EuryiyJiylle, Duchass. : E. laterts, Duchass., Gray, 1. c. p. 620. 
Fam. 11. PoLTMASTiAD^. Sponge massive, with numerous open-mouthed . 
erect tubes. Skeleton of the base, of divergent fascicules of spicules ; 
skeleton of the tubes formed of longitudinal and transverse fascicules of 
slender cylindrical elongated spicules. 
Genera : — Pencillaria, Gray : P. mammillaris (Bowerb.), Gray, t c. p. 627. 
Polymastia, Bowerb. : P. rohusta, Bowerb., Gray, 1. c. p. 627. 
Order IV. AOANTHOSPONGIA. Sponge strengthened with various- 
shaped spicules, besides the usual simple fusiform or needle-like spicules 
of the preceding order. Spicules bihamate, anchorate, threO-pronged, 
or star-like. 
Fam. 12. EuplectellAd.®. Sponge tubular, isolated, with the tubes closed 
at the top with a netted lid. Skeleton of the tubes formed of bundles of 
elongated cylindrical thread-like spicules placed in a longitudinal, trans- 
verse, and obli(][ue direction, crossing each other, and forming a more or 
less regular network. Sarcode scattered with stellate spicules, with the 
rays more or less divided. 
Genera : — Euplectella, Owen : E. aspergillum, Owen, Gray, 1. c. p. 629. 
Corbitella, Gray : C. speciosa (Quoy & Gaimard), Gray, 1. c. p. 630. Hetero- 
tella. Gray : H, corbicida (Valenc.), Gray, 1. c. p. 631. 
Fam. 18. EsrEUiADiB. Skeleton formed of fusiform and linear spicules, in- 
terspersed with anchorate, bihamate, or birotulate spicules, which are 
either attached to the membranes or scattered in the sarcode, and form 
a defence to the sponge. 
Genera : — Esperia, Nardo (part.) t E, typica, Nardo, Gray, 1. c. p. 632. 
Mycale, Gray: M. lingula (Bowerb.), Gray, 1. c. p. 632. JEgogropila, Gray : 
AS. varia?is, Grva.j=:Eesmacidon cegogropila (Bk.), Gray, t. c. p. 632. Menyl-' 
lus. Gray : M. ingalli (Bowerb.), Gray, I, o. p. 633. Ch'apelia, Gray t G. am- 
