294 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 3 



cm. high and show good discoid holdfasts, each giving rise to several erect 

 axes branched into irregular segments with unevenly toothed or prolifer- 

 ous margins. Comparison of these plants with the poor, battered types of 

 Gracilaria lacerate has convincingly demonstrated their identity. 



The type was found cast up at Santa Rosalia, M. 102 (AHF no. 76), 

 May. 



Gracilaria crispata S. & G. 



Setch. & Gard., 1924, p. 751, pi. 22, figs. 7-10, pi. 44a. 



A number of examples of this species have appeared from several lo- 

 calities in our area. Gracilaria crispata is similar in its irregular appear- 

 ance and uneven margins to G. lacerata, but is distinguished by its more 

 abundant branching (usually somewhat more divergent), shorter inter- 

 nodes, and crisped, undulate margins. Abundant, congested, semiprolifer- 

 ous branching is generally conspicuous in the terminal portions of mature 

 plants. 



D. & R. 3397, 3398, intertidal rock pools, Punta San Pedro, Guay- 

 mas, Dec; H. 600, dredged in 40 meters, San Jose del Cabo, Aug.; D. & 

 R. 3232, tide pools, cove north of Cabo Arco, Guaymas, Dec. ; D. 729, 

 lower littoral rocks. Turner's Island, July; M. 51 (AHF no. 75), Eu- 

 reka. 



A collection is also on hand which extends the range of this species to 

 Banderas Bay on the central coast of Mexico, H. 737, July. 



Gracilaria pinnata S. & G. 



Setch. & Gard., 1924, p. 751, pi. 61. 



J. 44 (AHF no. 80), dredged in 8-12 meters, Los Angeles Bay, June; 

 D. 243, cast up at high tide, Puerto Refugio, Jan.; D. 272, dredged in 

 12-22 meters, Mejia channel, Puerto Refugio, Jan. 



Gracilaria pachydermatica S. & G. 



Setch. & Gard., 1924, p. 753, pi. 24, figs. 30, 31. 



J. 122 (AHF no. 74), on rocks in upper sublittoral belt, Tortuga 

 Island, June. Not again collected. 



Gracilaria subsecundata S. & G. 



Setch. & Gard., 1924, p. 755, pi. 23, figs. 26, 27, pi. 59. 



M. 56 (AHF no. 73), cast ashore, Guaymas Bay, May. Not again 

 collected. 



