138 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 14 



Scrupocellaria harmeri Osburn, 1947 

 Plates 18, figs. 9 and 10, and 20, fig. 4 

 Scrupocellaria harmeri Osburn, 1947:20. 



Zoaria loosely spreading the branches narrow, the internodes of 

 moderate length, the joint crossing the outer zooecium just proximal to 

 the opesia. 



Zooecia slender, average length 0.40 mm, narrowed to about 0.09 mm 

 in width at the proximal end, nearly straight but a little incurved on the 

 outer border. Opesia decidedly less than one-half the frontal length, ovoid, 

 slightly constricted distally, with a conspicuous cryptocyst. Scutum ovate, 

 upper lobe small, attached well above the middle of the opesia, without 

 an alcicorn decoration; wanting on many of the zooecia. Spines 3 (2 to 

 4) outer and 2 (1 to 3) inner, moderately developed. 



Frontal avicularia small, with triangular mandible, wanting on most 

 of the zooecia. Lateral avicularia large and prominent, all of one size, 

 on all of the zooecia, rostrum and triangular mandible both hooked at 

 the tip. Vibracular chamber elongate and slender, the groove longitudi- 

 nal ; seta small and weak, scarcely longer than a zooecium. Radicle cham- 

 ber directly proximal to and in line with the vibracular chamber ; radicles 

 smooth. There are two prominent axial vibracula. 



Ooecium somewhat elongate, 0.16 mm long by 0.13 mm wide, smooth, 

 imperforate, with the distal end inclined toward the axis of the internode. 



Pacific specimens appear to agree in every respect, though they are 

 not in reproduction, with the type specimen from Aruba Island in the 

 Caribbean Sea. The species is similar to S. scruposa (L.) in appearance 

 but is more delicate and the presence of a scutum, the larger number of 

 spines and the form and position of the ovicell appear sufficient to sepa- 

 rate it. 



Hancock Stations: 447, Albemarle Island, Galapagos, 32 fms; 1378- 

 41, Santa Catalina Island, California, 2 to 3 fms; and at La Jolla, Cali- 

 fornia, among algae, Dr. C. L. Hubbs, collector. 



y^J\ 



Scrupocellaria macropora new species 

 Plates 19, fig. 2, and 20, fig. 1 

 Zoarlum erect, the branches more or less parallel; the internodes 

 rather long, ranging from 3 to 9 zooecia in a series; the joint crosses 

 the outer zooecium at the proximal end of the opesia. 



The zooecia are somewhat elongate (0.50 to 0.65 mm long by 0.20 

 mm wide at the broadest part), narrowed somewhat below the opesia. 

 The opesia is elliptical, scarcely narrowed proximally, about half or less 

 as long as the frontal, the mural rim thin, slightly raised. The avicularia 



