836 ON THE ANATOMY AND PHTSIOLO&T OE THE SPONGIAD^. 
Fig. 24. Attenuato-cylindeical, veeticillately seined, x 183 linear: page 832. 
Fig. 25. The same form of spiculum as that represented by fig. 24, in an early stage of 
development, Xl83 linear: page 832. 
Fig. 26. Toequeato-bidentate inequi-anchoeate, x308 linear: page 832. 
Fig. 27. Bicalcaeate bihamate, x 1250 linear: page 833. 
Fig. 28. Expando-teidentate equi-anchoeate, x 1250 linear: page 833. 
Fig. 29. Teidentate pimbeiated equi-anchoeate, x666 linear: page 833. 
Fig. SO. Quadeihamate, X 1250 linear: page 833. 
Fig. 31. Inequi-teieotulate, x666 linear: page 833. 
Fig. 32. Eccenteic TEiEOTULATE, X 666 linear : page 833. 
Fig. 33. Eccenteic TEIEOTULATE, x 666 linear: page 833. 
Fig. 34. Incompletely developed, cylindeo-ceucifoem, entieely spined, x175 linear: 
page 833. 
Fig. 35. Cylindeo-ceucifoem, paetly developed and entieely spined, x 175 linear: 
page 833. 
Fig. 36. Cylindeo-ceucifoem, apically spined, x 175 linear: page 833. 
Fig. 37. Cylindeo-ceucifoem, entieely spined, x 175 linear: page 833. 
Fig. 38. Spiculated cylindeo-ceucifoem, x 175 linear: page 833. 
Fig. 39, Dentato-cylindeo-hexeadiate, x 666 linear : page 834. 
Fig. 40. Extee-spinulated aecuate, X 1250 linear : page 834. 
Fig. 41. Spinulo-multifuecate hexeadiate stellate, x 666 linear : page 834. 
Fig. 42. Multiangulated cylindeical, x 400 linear : page 834. 
Fig. 43. Spinulo-multiangulated cylindeical, x666 linear: page 834. 
Fig. 44. Inflato-aceeate, with incissueate teeminations, x 666Jinear : page 834. 
