MUSEUM OF COMPARATIVE ZOOLOGY. 41 



rudimentary, only the two largest usually distinct. A few rudimentary 

 corallites, often opening downward, are scattered among the others. — 

 Kingsmills Islands; A. Garret. 



Madrepora diffusa Vekkill. 



Corallum low arborescent, much branched; branchlets widely spreading 

 or divaricate, curved, gradually tapering to the acute extremities, about a 

 third of an inch in diameter, and two or three long. Corallites broad tubo- 

 nariform, short, scarcely compressed, widely open, the exterior closely 

 striate, the costre consisting of numerous, distinct points; intercellular tissue 

 firm, reticulated, the surface spinose. Septa narrow, the six primary ones 

 distinct, the inner one broadest. Terminal corallite exsert, scarcely larger 

 than the lateral. This species resembles M. arbuscula and M . formosa in 

 its mode of branching, but the cells are entirely different. — Kingsmills 

 Islands ; A. Garret. 



Madrepora parvistella Verrill. 



Arborescent, numerously branched; branchlets spreading, curved, neatly 

 rounded and tapering, about half an inch in diameter and three or four 

 long. Corallites evenly crowded, very small, short, tubular, opening 

 obliquely upward ; exterior costate, scabrous ; cells small, broad oval, 

 stellate ; twelve septa distinct, the two largest nearly meeting in the centre.. 

 — Singapore ; Capt. W. II. A. Putnam. 



Madrepora hoi'rida Dana. — Feejce Islands ; J. D. Dana. 



Madrepora abrotanoides Lamarck. — Fcejee Islands; J.D.Dana. 



Madrepora vil'gata Dana. — Fcejee Islands ; J. D. Dana. 



Madrepora hebes Dana. — Fecjee Islands ; J. D. Dana. 



Madrepora austera Dana. — Singapore; Capt. W. II. A. Putnam. 



Madrepora implicata Dana. — Feejee Islands ; J. D. Dana. 



Madrepora tortUOSa Dana. — Feejee Islands; J. D. Dana. 



Madrepora formosa Dana. — Feejee Islands; J. D. Dana. 



Madrepora brachiata Dana. — Sooloo Sea ; J. D. Dana. 



Madrepora echiuata Dana. — Feejee Islands; J. D. Dana. 



Madrepora longicyathus M. Emv. — Singapore; Capt. W. II. A. Putnam. 



Madrepora tubigera Horn, Proe. Phil. Acad. Nat. Sci. 1860, p. 435. 



Syn. ? Madrepora conjmhosa Lamk. — Singapore ; Capt. W. II. A. Put- 

 nam. 



Madrepora Danse Verrill. 



Sy.v. Madrepora deformis Dana (non Miciilin). — Tahiti : J. D. Dana, 

 A. Garret. 



Madrepora CUSpidata Dana. — Tahiti ; A. Garret. 

 6 



