NO. 5 fraser: hydroids 255 



than any of the others, but it is shallower; the second, third and fourth 

 laterals do not differ much in size or shape ; they are rounded at the tip ; 

 the fifth is smaller than any of the other laterals and is more sharply 

 pointed. The supracalycine nematophores are of medium size, curved, 

 reaching to the margin of the hydrotheca or slightly beyond ; the mesial 

 nematophore is adherent to the face of the hydrotheca for about three- 

 fourths of its length, and then projects sharply outward, the total length 

 being much the same as the length of the face of the hydrotheca ; there is 

 a distinct septum between the nematophore and the hydrotheca through- 

 out the whole length of the adherent portion. The 3 cauline nematophores 

 on each internode do not differ materially from the usual type. 



Gonosome. — The corbula is large, up to 15 pairs of leaves, elongated 

 elliptical, the taper being slightly more pronounced proximally than dis- 

 tally; there are no perforations between successive pairs of leaves; the 

 basal nematophore on each leaf projects somewhat to form an inconspicu- 

 ous spur. There are 2-4 hydrothecae between the corbula and the stem. 



Distribution. — Station 1296-41, 1 mile east of Smugglers Cove, Santa 

 Cruz Island, 19-20 fathoms; 1 mile north of Point Bennett, San Miguel 

 Island, 40-46 fathoms ; 2^ miles east of South Point, Santa Rosa Island, 

 23-28 fathoms; 2^ miles east of South Point, 17-18 and 15-20 fathoms; 

 1 mile south of East Point, 15-16 fathoms; 2.6 miles east of East Point, 

 47-49 fathoms r 6^4 miles SE of East Point, 46 fathoms ; 3 miles SE of 

 Fraser Point, Santa Cruz Island, 15-19 fathoms; 0.3 miles west of Peli- 

 can Bay, 35 fathoms; 1 mile north of San Pedro Point, 45-46 fathoms; 

 3% miles NE of San Pedro Point, 46-47 fathoms; ^ mile east of San 

 Pedro Point, 26-40 fathoms ; y^ mile north of Piatt Point, 36-47 fath- 

 oms; east of Gull Island, 11-19 fathoms; Anacapa Passage, 25-26 fath- 

 oms; north of Anacapa Island, 15 fathoms; 1 mile north of west end of 

 Anacapa Island, 45-46 fathoms; 1 mile south of west end of Anacapa 

 Island, 25-26 fathoms; NE of Anacapa Island, 45 fathoms; east of Santa 

 Barbara Island, 41-47 fathoms; 1 mile east of Santa Barbara Island, 20- 

 40 fathoms; 4 miles east of Landing, Santa Barbara Island, 40 fathoms; 

 Zy2 miles— 238° off Huntington Beach, 74-77 fathoms; 5 miles— 152° 

 from San Pedro breakwater, 17-19 fathoms; south of San Nicolas Island, 

 20-34 fathoms; Dutch Harbor, 15-22 fathoms; 9 miles off San Diego, 

 78-81 fathoms; San Diego Bay, 5-7 fathoms; Ranger Bank, west of 

 Cedros Island, 78-83 fathoms; 1 mile south of San Benito Islands, 40-49 

 fathoms; 5^ miles south of San Benito Islands, 69-81 fathoms. 



