Si/no^jiii'^ of fke Aitstiullan Galcarea Heteroccela. JJi) 



36. Lcncandra Jtisplda, Carter, sp. 

 Leuconia hlspida, Carter. Annals and Magazine of 



Natural History, Auo-ust 1880, p. 128. 



This species is abundant in the collectiou. It is distin- 

 guished by its elongated cylindrical form, hispid surface, and 

 the long-ra37ed, slender triradiates of the main skeleton. All 

 the specin'iens are solitary and sessile, of moderate size and 

 with a well-developed oscular fringe. The large oxea of the 

 dermal surface are long and comparatively slender, slightly 

 curved. The flagellated chambers are approximately spherical 

 and average about 0'09 mm. in diameter. 



Mr. Carter appears to have had oid}- a single specimen 

 (collected by Mr. Wilson), which was exceptionally short and 

 " conoglobular ; " I judge from his description and manu- 

 script illustrations of the spiculation that it is speciticalh' 

 identical with the specimens described above. 



Localities. — Near Port Phillip Heads (Carter, and Stations 

 0, 10, 14, coll. -J. B. Wilson) ; Port Jackson (coll. Professor 

 Spencer). 



37. Leucandra echiwda, Carter, sp. 

 Leuconia echiimta, Carter. Annals and Magazine of 



Natural History, August 188G, p. 129. 



This species is abundant in the collection. The sponge 

 usually has the form of a rather small, ovoid, sessile, thick- 

 walled individual, with terminal fringed osculum and coarsely 

 echinated dermal surface. The species exhibits a good deal 

 of variation in spiculation, especially in the size of the 

 irregularly arranged triradiates of the main .skeleton, which 

 are often very much larger than those of the deimal cortex. 

 The other forms of spicule present are gastral quadriradiates, 

 large dermal oxea (echinating the sui-face), and long, slender, 

 hair-like oxea of the oscular fringe. The flagellated chambers 

 are approximately spherical and densel}" scattered through- 

 out the thickness of tlie wall ; they measure about 009 mm 

 in diameter. 



Locality. — Near Port Phillip Heads (Carter, and Stations 

 1,9, 10 and outside the Heads, coll. J. B. Wilson); Watsons 

 Ba^^ Port Jackson (coll. T. Whitelegge). 



38. Leucandra. niultifida, Carter, sp. 

 Leuconia iiiidtijida, Carter. Annals and Magazine of 

 Natural History, August 1880, p. 1-il. 



Localitij. — Near Port Phillip Heads (Carter). 



H 2 



