CALCAREOUS SPONGES. 749' 



61. a. T'ESBEhLATVM Bowei'bank. 



Grantia tessellata Bowerbank [1864-1882]. 

 Sycandra elegans var. tessellata Haeckel [1872]. 



62. S. TESSERARiuM Haeckel. 



Sycandra quadrangidata var. tesseraria Haeckel [1872]. 



63. S. TUBA von Lendenfeld. 



Sycandra tuba von Lendenfeld [1891]. 



64. S. TUBULosuM Haeckel. 



Sycandra coronata var. tuhidosa Haeckel [1872]. 



65. S. VERUM Roiv. 



Sycon veruin Row [1913 MS.]. 



66. S. viLLOSUM Haeckel. 



Sycarmtn villosimi Haeckel [1870]. 



Sycum clavatum Haeckel [1870],^fZe Haeckel [1872]. 



Sycandra villosa Haeckel [1872]. 



67. S. viRGULTOSUM Hueckel. 



Sycandra alcyoncellum var. virgtdtosa Haeckel [1872]. 



Genus 17. Sycandra Haeckel [1872] (emend.). 



Diagnosis. The radially arranged flagellate chambers more or less 

 united where the}^ come into contact with one another. 

 Gastral cavity ti-aversed by strands of tissue containing 

 bundles of parallel oxea and forming a more or less strongly 

 developed endogastric network. Radially arranged dermal 

 oxea present. 



For illustrations of this genus see Haeckel [1872]. 



We propose to use this generic name for O. Schmidt's Ute 

 utricidus {=Sycandra iitriculus Haeckel), which is sufficiently 

 sharply distinguished by its skeletogenous endogastric network. 

 There is only one other species in which this character is known 

 to occur, namely Leucettaga locidosa, a member of the family 

 Grantiidfe. 



The species of Sycandra which precede ^S^. utricidus in Haeckel's 

 monograph having been relegated to earlier genei-a, such as Sycooiy 

 Ute and Grantia, this species becomes the type of the genus. 



The only known species is : — 



1. S. UTRicuLus 0. Schmidt. 



Ute utricidics O. Schmidt [1870]. 

 Sycandra iitriculus Haeckel [1872]. 



