NO. 5 fraser: hydroids 257 



oms; east shore of Santa Barbara Island; off Redondo Beach; off San 

 Pedro breakwater, 14 fathoms; 3 miles off Seal Beach, 11 fathoms; in 

 channel, Newport Harbor, 4-10 fathoms; 7 miles east of Long Point, 

 Santa Catalina Island, 228-267 fathoms; 1 mile NW of White Cove, 

 2-3 fathoms; south of San Nicolas Island, 20-34 fathoms; 2 miles NW 

 of buoy, Cortes Bank, 42-45 fathoms; San Diego, shore; 4^ miles east 

 of Coronado Islands, 14 fathoms; 1^ miles north of Cedros Island, 45- 

 55 fathoms; South Bay, Cedros Island, 10-15 fathoms; Turners Island, 

 off Tiburon Island, Gulf of California, shore; off Rocky Point, Sonora, 

 10 fathoms. 



Aglaophenia integriseptata, new species 

 Plate 31, Fig. 27 



Trophosome. — The symmetrical colony reaches a height of 11 cm; 

 the dark horn-colored stem is divided into regular internodes by well 

 marked nodes. The hydrocladial processes are so near the middle line on 

 the face of the stem that they form a zigzag series, but each hydrocladium 

 turns quite abruptly outward so that those on the two sides are nearly in 

 the same plane for the greater part of their length. The hydrocladia, of 

 a lighter color than the stem, are regularly graded in length, the longest 

 1.2 mm. The internodes are relatively short and there are no noticeable 

 septa except for a slight indication opposite the hydrothecal septum. The 

 hydrotheca is short and stout, of much greater diameter at the margin 

 than at the base.* There are 9 teeth on the margin ; the median tooth is 

 small and sharp, slightly retrorse, but appearing to be more so since the 

 first lateral tooth is much longer and projects markedly outward ; the sec- 

 ond lateral is the smallest, the third and fourth being nearly equal, as 

 broad but not as long as the first lateral. The supracalycine nematophore 

 is not large and does not reach past the margin of the hydrotheca; the 

 mesial nematophore is almost as long as the face of the hydrotheca, in 

 contact with this for at least three-fourths of its length, and then turning 

 outward. In some instances, if not in all, there are but 2 nematophores on 

 each cauline internode. 



Gonosome. — The corbula is not large, with 7 or 8 pairs of leaves, 

 quite definitely cylindrical, with the length, 2.4 mm, little more than 

 twice the diameter. There are no perforations or spur-like nematophores 



* The septum is complete, straight but oblique, the end at the face of the hydro- 

 theca being the more distant from the base. 



