142 PROCEEDINGS OF THE NATIONAL. MUSEUM vol.84 



at the end of a median tubelike structure some distance behind the 

 anus. On each side of this structure is a longitudinal ridge. In 

 the Palawan females these lateral ridges, as well as the median lower 

 edge of the tubelike median organ, each bear a row of exceedingly 

 minute spines; the preservation of the Singapore specimens is so 

 poor that I cannot be sure of the presence of these spines in them. 



Genus GULAPHALLUS Herre 



GULAPHALLUS MIRABILIS Herre 



Villadolid and Manacop (1934) have given an interesting account 

 of the habits, breeding, embryology, and the ontogeny of the external 

 features of the priapium in this species (see Herre, 1925), based 

 on studies of examples obtained in Molawin Creek, Laguna de Bay, 

 near the College of Agriculture of the University of the Philippines. 

 From this it is evident that the ctenactinia are used as claspers, that 

 fertilization is internal, and that the eggs are deposited to hatch 

 externally. Smith (1927) had observed that the eggs are deposited 

 and not hatched within the female in Phe7iacostethus^ but he appar- 

 ently made no observation on the copulation. 



Bailey (1936) gives a detailed account of the osteology of this 

 species. I have examined numerous specimens of this species from 

 Molawin Creek, sent to me by Dr. Villadolid. 



GULAPHALLUS EXIMIUS Herre 



Of this fresh- water species (see Herre, 1925), the largest and bulk- 

 iest of the phallostethids, I have examined two topotypes, adult male 

 and female, collected by Dr. Herre in 1931 in a brook near Santa Fe, 

 Nueva Vizcaya Province, Luzon. They are in the collection of Stan- 

 ford University. 



Genus MIROPHALLUS Herre 



MIROPHALLUS BIKOLANUS Herre 



The three cotypes of this species (Stanford University no. 24475), 

 described by Herre (1926), that I have examined are immature and 

 in poor condition. There is no vestige of the first dorsal fin. 



