106 _  MADREPORARIA. 
89. Porites Sandwich Islands (99, (P. Hawaiensis nona.) 
[Hawaii and Molokai, coll. Dr. Schauinsland; Bern Museum. ] 
Syn. Porites quelchii Studer, Zool. Jahrb. xiv. (Syst.) (1901) p. 422, pl. xxxi. fig. 14. 
Description.—The corallum is massive, with surface very uneven, closely covered with 
rounded or oval knobs and lobes, which combine to form larger ones. The lower edges, 
3 mm. thick, are free and supported by epitheca, and several of them may be seen one over 
the other. 
The calicles are variable in size, on the eminences large and hexagonal, 1*3-1°8 mm.; in 
the valleys, small and often squeezed out of shape. They are deep, from 1-1°3 mm.; the 
walls of varying thickness, from 0°5-1°0 mm., but tending to be thin and sharp. The septa 
project far into the fossa, and are nearly solid. They have two to three rough denticles along 
their edges, and echinulations on their sides which, deep down, form synapticule. The pali are 
irregular in number. The interseptal loculi are small, owing to the thickness of the skeletal 
elements, to the formation of synapticule and of the columellar tangle. In section the coral is 
very compact. 
This description is taken from Professor Studer’s text and collotype figure. The chief 
specimen was very heavy, about 15 em. high and 14 cm. across. The whole growth-form is not 
given, but the surface is specialised more like that of P. Ellice Islands 3 (Gardiner’s “ purpurea”), 
than like that of P. New Hebrides 1 (Quelch’s “parvistellata”), with which Professor Studer 
would compare it. The calicles of these different forms, however, have no resemblance 
whatever to one another. The description of the morphology of the calicle now given in the 
Introduction (pp. 13-21), makes it necessary to call attention to the three rough denticles or 
granules said to occur along the septal edges, 
GULF OF CALIFORNIA AND BAY OF PANAMA. 
90. Porites Gulf of California (31. (P. Californica prima.) 
[La Paz, Gulf of California (4-5 fathoms), coll. Capt. Pedersen; Yale College Museum. ] 
Syn. Porites Californica Verrill, Trans. Conn. Acad. i, part 2 (1867-71) p. 504. 
Description.—The corallum is massive, encrusting, with surface rising into irregular lobes 
or branches. These are coarse, short, from 1*2-3°6 cm. in length, and 1*2-1°8 em. thick, 
rounded at the top, often compressed or confluent into wide irregular lobes. 
