| OCR Text |
Show 1886.] POSITION AND CLASSIFICATION OF SPONGES. 583 10. Familia THENEID^E, Sollas. With large outlets to the ciliated chambers, and spirastrellid spicules. Thenea, Gray (Tisiphonia, Wyville Thomson, Dorvillia, Sav. Kent, Wyville-Thomsonia, Wright); Normania, Vulcanella, and Chara-cella, Sollas. 11. Familia TETILLID^E, Sollas. With flesh-spicules which are hamate, spiral, or rod-shaped. Spiretta, Lendenfeld ; Tetilla, Schmidt; Craniella, Schmidt; Chrotella, Sollas ; Papirula, Schmidt; Thalassomora, Lendenfeld. 12. Familia TETHYOPSILLID^E, nov. Spherical sponges supported by dense masses of large radial monaxonid spicules. A few tetraxonid grapnels are inserted in the surface. Tethyopsilla, Lendenfeld, and Protoleia, Dendy and Ridley. n. Subordo MONAXONIDA. in. Group C L A V U L I N A , Vosmaer, emend. With monaxonid spicules or without supporting skeleton. Supporting spicules tylostyle, usually radially situated. (Includes the Pseudo tetraxonia, Vosmaer.) 1. Familia TETHYDJE, Vosmaer. More or less spherical sponges, with regular subdermal cavities between the thick distally extending radial bundles of spicules. 1. Subfamilia Tethynce, nov. With stellate flesh-spicules. Tethya, Lamarck; Tuberella, Keller (Tethiophcena, Schmidt); Tethiosphcera, Lendenfeld ; Mastigophora, Lendenfeld; Thalasso-dactylus, Lendenfeld. 2. Subfamilia Tethiopsammince, nov. With a sand cortex. Tethiopsamma, Lendenfeld, M S . 3. Subfamilia Tethyorhaphina?, nov. With rod-shaped flesh-spicules, without stellates. Tethyorhaphis, Lendenfeld. 4. Subfamilia Tethyamatince, nov. With hamate flesh-spicules (sigmata) without stellates, Tethyamata, Lendenfeld. |
