On the structure and affinities of the genus Monticulipora and its sub-genera, with critical descriptions of illustrative species . Fig. 2. — A, Tangential section of a single corallite of Monticulipora tindulata, Nich.; F, Tan-gential section of a single corallite of Monticulipora petasiformis, Nich., showing theduplex character of the wall ; C, Tangential section of a corallite oi Moniiailipora ritgosn,Edw. and Haimes ; D, Tangential section of a corallite of Alonticitlipora Aininnvsii,Nich. All the sections are enlarged fifty times. visceral chambers of contiguous corallites appear to be ab
On the structure and affinities of the genus Monticulipora and its sub-genera, with critical descriptions of illustrative species . Fig. 2. — A, Tangential section of a single corallite of Monticulipora tindulata, Nich.; F, Tan-gential section of a single corallite of Monticulipora petasiformis, Nich., showing theduplex character of the wall ; C, Tangential section of a corallite oi Moniiailipora ritgosn,Edw. and Haimes ; D, Tangential section of a corallite of Alonticitlipora Aininnvsii,Nich. All the sections are enlarged fifty times. visceral chambers of contiguous corallites appear to be abso-lutely indivisible and without structure, presenting themselvesin thin sections merely as delicate dark lines. Dybowski (DieChsetetiden) lays great stress upon this feature, and uses it asa basis for subdividing the Monticuliporoids into two primarysections. For my own part, I believe that in such a complexgroup as the present, no single character, such as this is, is ofitself sufficient for the establishment of primary subdivisions ;and I feel satisfied that this apparent amalgamation of thewalls of contiguous corallite
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Keywords: ., bookauthornicholso, bookcentury1800, bookdecade1880, bookyear1881
