46 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 16 



Family Poritidae 



Genus PORITES Link 



Pontes Link (1807), Beschreib. Natur. Samml. Rostock, p. 162. 

 Genotype; Madrepora pontes Pallas. 



Porites californica Verrill 

 Plate 3, figs. 17a, b 



? Porites sp. Grewingk (1848), Verh. Russisch-Kaiserl. Miner. Ges- 



ellsch. St. Petersburg, Jahr 1847, p. 146. 

 Porites Californica Verrill (1870), Trans. Conn. Acad. Arts Sci., vol. 



1, p. 504. 

 Porites porosa Verrill (1870), Trans. Conn. Acad. Arts Sci., vol. 1, 



p. 504; Bernard (1905), Brit. Mus. (Nat. Hist.), Cat. Madre- 



porarian Corals, vol. 5, pt. 1, p. 107. 

 Porites californica Verrill, Bernard (1905), Brit. Mus. (Nat. Hist.), 



Cat. Madreporarian Corals, vol. 5, pt. 1, pp. 106-107; Durham 



(1947), Geol. Soc. Am., Mem. 20, pp. 20-21, pi. 13, figs. 3, 



5, 6; pi. 14, figs. 1-5. 

 The type locality of this species is La Paz. It was recorded from the 

 Pliocene, Pleistocene, and recent in the Gulf of California by Durham 

 from Angel de la Guardia Island southward; and in the Pleistocene at 

 Magdalena Bay. Verrill's specimens were from a depth of 4-5 fms. 

 Other specimens came from gravelly beaches. 



One massive, beach-worn specimen of a Porites is present from Sta. 

 47-33 (Barrington Island, Galapagos, 2 fms). Several of the best-pre- 

 served corallites have up to 18 septa. This might represent the form 

 described by Verrill as Porites excavata. 



Hypotype: Cat. no. 17.3 (Station 1112-40). 



Material examined: Stas. 449-35 (1), 1104-40 (1), 1112-40 (5). 

 Cat. nos. 17.1-17.3. 



Distribution: Agua Verde Bay; San Gabriel Bay, Espiritu Santo 

 Island, Gulf of California, shore. Secas Islands, Panama, 25 fms. 



Porites nodulosa Verrill 

 Plate 3, fig. 18 



Porites nodulosa Verrill (1870), Trans. Conn. Acad. Arts Sci., vol. 1, 

 pp. 505-506; Bernard (1905), Brit. Mus. (Nat. Hist.), Cat. 

 Madreporarian Corals, vol. 5, pt. 1, p. 107; Durham (1947), 

 Geol. Soc. Am., Mem. 20, pp. 22-23, pi. 12, figs. 1-3; pi. 13, 

 fig. 4. 



