70 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 12 



These plants suggest C. cervicome Setch. & Gard., but are more 

 slender and more branched I'n habit, with rather more thin-tipped utricles. 



Ecuador: Archipielago de Colon, dredged in 36-55 meters near an 

 islet in Gardner Bay, I. Espafiola, no. 34-424 (fertile), 31 Jan. 1934. 



Godium isabelae n. sp.^^ 

 Plate 1, Figs. 10-13 ; Plate 7, Fig. 1 



Plant slender, bushy, 6-8 cm tall; dichotomously to irregularly 

 branched, the branches 1.5-3.0 mm diam., slightly tapered above, not 

 compressed, smooth when dry; peripheral utricles to 95-260 /* diam., 

 generally 100-150 /t, about 2-3 diameters long, subcylindrical to broadly 

 clavate, the end rounded, the wall notably thick and lamellate, 15-35 ^, 

 smooth ; hair scars not distinct; gametangia one or two on a fertile utricle, 

 attached about two thirds below the top, rounded or truncate-spindle 

 shaped, 75-107 /x diam., 150-220 fi long. 



Of the specimens available, those from I. Espafiola differ in having 

 gametangia near the minimum size and perhaps in being of spreadmg 

 rather than erect habit. While this last feature would relate the plants 

 to C. repens, the thick end walls of the utricles relate them rather to the 

 I. Isabela and I. Santa Maria plants. 



Mexico: Is. Revilla Gigedo, dredged from 45 meters' depth at sta. 

 919 near I. Clarion, no. 39-31, 17 Mar. 1939. Ibid., dredged from 56- 

 102 meters' depth at sta. 921, no. 39-42, 17 Mar. 1939. Ecuador: 

 Archipielago de Colon, very small plants on the littoral rocks at the head 

 of Tagus Cove, I. Isabela, no. 34-152 (fertile, TYPE), 14 Jan. 1934. 

 Ibid., littoral pools at Black Beach Anchorage, I. Santa Maria, no. 34- 

 253 (scantily fertile), 17 Jan. 1934. Ibid., dredged from a rocky bot- 

 tom at 36-55 meters' depth off an islet in Gardner Bay, I. Espanola, 

 no. 34-420A (fertile), 31 Jan. 1934. 



Godium longiramosum Setchell & Gardner 



Plants to over 68 cm tall, occasionally simple, generally branched 1-4 

 times successively within 1 dm of the base, but not in the upper portion ; 

 at the axils slightly dilated, otherwise cylindrical and reaching 1 cm diam., 



55 Codium isabelae n. sp. — Plantae ad 6-8 cm altitudine, graciles, dichotome 

 aut irregulariter ramosae, ramis 1.5-3.0 mm diam., cylindricis; utriculis peripher- 

 alibus 95-260 \i diam., 2-3 plo longioribus quam latis, a subcylindricis ad late 

 clavatos variantibus, membrana extrema 15-35 \x. crassa; gametangiis 1-2 utriculo 

 insedentibus, rotundatis aut truncato-fusiformibus, 75-107 n diam., 150-220 \i long. 

 Planta typica in loco dicto Tagus Cove, I. Isabela, Ecuador, legit W. R. Taylor 

 no. 34-152, 14 Jan. 1934. 



