. Annali del Museo civico di storia naturale Giacomo Doria. Natural history. 152 G. PULITZER-FINALI : laminar, 5-6 mm thick, hard but fragile, infested by white zoanthid. Colour in life violet-brown on one side, tawny on the other one. In formalin the colour is olive-brown. Oscules, about 1 mm wide, are present on only one side, the lighter one. Spicules: oxeas stout, regularly curved, with short points, which may be regarded as belonging to three categories: 250-290 X [jim, 55-170 X [zm, 23- 40 X [ Fig. 69 - Petrosia weinbergi Soest. Spicules of specimen
. Annali del Museo civico di storia naturale Giacomo Doria. Natural history. 152 G. PULITZER-FINALI : laminar, 5-6 mm thick, hard but fragile, infested by white zoanthid. Colour in life violet-brown on one side, tawny on the other one. In formalin the colour is olive-brown. Oscules, about 1 mm wide, are present on only one side, the lighter one. Spicules: oxeas stout, regularly curved, with short points, which may be regarded as belonging to three categories: 250-290 X [jim, 55-170 X [zm, 23- 40 X [ Fig. 69 - Petrosia weinbergi Soest. Spicules of specimen : 50 [xm. : fragmented, lamellar, 5-7 mm thick, infested by zoanthid. In life dark violet, interior tan; now light greenish drab. Fragile. No oscules apparent. Spicules: oxeas measuring from 37 X 3 ( to 280 X 14 [Jim. They have the same character as in , but some strongylote modifications are present. The spicules are not clearly separable in categories. The sponge is locally common. : fragments of large laminar sponge, 8 mm thick. Oscules 1-2 mm wide, about 5 mm apart, on one side only. Colour in spirit dull dark green. Spicules: Oxeas with short rounded ends, almost strongylote, measuring 50-280 X [xm. : only a fragment is available, consisting of a thick-walled tube with an apical vent. The tube is 6 cm high and has a diameter of cm, the vent is 15 mm wide. The colour in life was brown externally, tan internally, in formalin it is olive-brown. The consistency was hard and fragile. There is a considerable difference in form between this specimen and the laminar ones, but colour, consistency and spiculation are identical. The oxeas tend to a strongylote form and may be regarded as belonging to three sizes: 23-39 X \ivsi, 65-150 x 9-14 fxm and 230-280 X 12-14 [jim. Petrosia pellasarca (Laubenfels) (Fig. 70) Haliclona pellasarca Laubenfels 1934: 23. Please note that these images are extracted from scanned page images that may ha
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectnaturalhistory, booky
