212 RECORDS OF THE AUSTRALIAN MUSEUM. 



dealt with in so far as they bear on my paper. The collection 

 contains eight species which have been more or less fully described 

 in the report ; of these, six were enumerated in the Catalogue as 

 new species. There is also one species which, although well 

 represented in the Fisheries donation, was omitted from the 

 report on account of ray inability to identify it. 



The results obtained by the examination of the fragments from 

 the British Museum, are con6rmatory of the descriptions of the 

 Lendenfeldian types as published in my report The species 

 dealt with are as follows : — 



Arenochalina mirahilis, Lendenfeld, from Torres Straits. — The 

 spicules are styli, and occur in both the main and secondary fibres. 

 A recently collected specimen from Port Jackson exhibits numerous 

 similar styli in the ground substance. 



A fragment of Clathria ( Plectispa) arborea, Lendenfeld, appears 

 under the name of Thalassodendron reticulata, Lendenfeld. The 

 echinating spicules in this example are spined styli ; the question 

 as to what particular sponge was described under the above name 

 still requires an answer, inasmuch as the fibres are described as 

 being echinated by smooth styli. 



A specimen labelled Clathria macropora, Lendenfeld, agrees 

 with the type as redescribed in my paper. The same remarks 

 also apply to a spirit specimen, bearing the name of Echinonema 

 levis, Lendenfeld. Echinonema rubra, Lendenfeld, does not differ 

 in its spicular characters from the two preceding; in this example 

 the spicules in the fibres are oxea, and not styli as stated in the 

 original diagnosis. 



A specimen labelled Euspongia officinalis, var. sertalis, Len- 

 denfeld, proves to be identical with Euspongia pikei, Hyatt. The 

 first name is that used in the manuscript list, and also occurs on 

 the label of the specimen described and figured in my report. An 

 examination of the specimen from the British Museum confirms 

 my description of the fibres. There are distinct threads of sand 

 grains cemented in the interstices of the trellised fibres. 



Euspongia officinalis, var. dura, Lendenfeld. — My surmise 

 regarding this form proves to be correct. The British Museum 

 piece corresponds in texture, surface, colour, and state of preserva 

 tion with our named example. From Western Australia. 



Stelospongia canalis, Lendenfeld. — A spirit specimen, bearing 

 the name of Cacospongia canalis, Lendenfeld, is in the collection. 

 The main fibres of this example contain an axial string of foreign 

 spicules, thus confirming the account given in my report. 



Thalassodendron viminalis, Lendenfeld. — When writing of this 

 species I expressed the opinion that it did not agree with the 

 description. The British Museum example agrees as to habit 



