NO. 1 fraser: hydroids 61 



Genus LYTOGARPUS 

 Lytocarpus philippinus (Kirchenpauer) 



A glaophenia philippina KiRCHEPAUER^ Ueber die Hyd. Fam. Plumu- 



laridae, Part I, 1872, p. 45. 



Lytocarpus philippinus NuTTiNG, Am. Hyd., Part I, 1900, p. 122. 



Distribution. — Santa Elena Bay, 5-7 fathoms and 10-12 fathoms; 

 La Plata Island, 10-12 fathoms; San Francisco Bay, 2 fathoms; Gor- 

 gona Island, on coral at low tide; Port Utria, on coral at low tide; 

 Bahia Honda, 15-25 fathoms; Secas Islands, 15 and 25 fathoms; South 

 Viradores Islands, 8-10 fathoms; off White Friars, 25 fathoms; off 

 Morro de Petatlan, 25 fathoms; off Tenacatita Point, 10 fathoms; east 

 of islands off Navidad Head, 25-35 fathoms. 



Genus MONOSTAECHAS 

 Monostaechas quadridens (McCrady) 



Plujnularia quadridens McCrady, Proc. Elliott Soc, 1859, p. 199, 

 Monostaechas quadridens Nutting^ Am. Hyd., Part I, 1900, p. 75. 



Distribution. — Braithwaite Bay, 16-18 fathoms; south of Clarion 

 Island, 50 fathoms; Black Beach, low tide; San Francisco Bay, 2 and 

 3-8 fathoms; Port Utria, 15-20 fathoms; Pacora Island, 15-25 fathoms; 

 Secas Islands, 15 fathoms; Tangola-Tangola, 15-20 fathoms; east of 

 islands off Navidad Head, 25-35 fathoms; South Bay, Cerros Island, 

 10-15 fathoms. 



Genus PLUMULARIA 



Plumularia acutifrons, new species 

 Plate 14, Fig. 70 



Trophosome. — Colony small and slender, up to 2 cm. in height, but 

 mostly shorter than this. Stem divided into regular short internodes, 

 each somewhat rounded at each end, giving a constricted appearance to 

 the stem at each node. Each internode bears a hydrocladium near its 

 distal end; the hydrocladia alternate. The hydrocladial process grows 

 rather from the face of the internode than from the lateral surface, the 

 successive hydrocladia being little more than 30° from each other. Each 

 hydrocladium is divided into alternate nonhydrothecate and hydrothecate 

 internodes, the proximal being nonhydrothecate. The nonhydrothecate 



