182 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 12 



tion is not a simple one, consisting of one broad band followed by a nar- 

 row band. However, Foslie (1904, p. 69, fig. 26B) discounts this some- 

 what by indicating that the bands may not be so distinctive. In our mate- 

 rial they likewise may be subequal, but much more generally a broad band 

 alternates with two subequal bands of about one third the width. As 

 phases of variation one finds a simple 1 :1 alternation, and cases where 

 there were the two narrow bands, but one only half as wide as the other. 

 Since the external form is so like L. moluccense and the definable differ- 

 ences are histological, the writer prefers to treat this as a variety of the 

 species even though geographically isolated. 



Ecuador: Archipielago de Colon, in intertidal pools, occasional at 

 Black Beach Anchorage, I. Santa Maria, no. 34-234B (TYPE), 17 Jan. 

 1934. 



Lithophyllum complexum Lemoine 



Lemoine 1929, p. 60, pi. 2, fig. 7. 



Reported without definite locality from the Archipielago de Colon. 



Lemoine (1929) described some 17 new species of Corallinaceae 

 from the Galapagos Islands. Of these the writer can list but few here 

 from his own collections ; this is probably due to the fact that the simpler 

 crustaceous corallines are for the most part still unstudied. The entries 

 on Mme Lemoine's authority are therefore important for the complete- 

 ness of this report. 



Lithophyllum alternans Lemoine 



Lemoine 1929, p. 64, pi. 1, fig. 3, pi. 2, fig. 9. 



Reported from I. San Salvador and I. Santa Maria, Archipielago de 

 Colon. By Setchell and Mason (1943, p. 88) removed to Goniolithon. 



Lithophyllum sancti-georgei Lemoine 



Lemoine 1929, p. 66, pi. 4, fig. 2. 



Reported from I. Isabela, Archipielago de Colon. 



Lithophyllum intermedium Foslie 



Lemoine 1929, p. 66, pi. 1, fig. 3, pi. 2, fig. 3, pi. 3, fig. 6, pi. 4, fig. 7. 

 Reported from I. Isabela, I. San Salvador, I. Santa Cruz, and I. Santa 

 Maria, Archipielago de Colon. 



