24 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 12 



On the eastern side of I. San Salvador the Expedition visited I. 

 Bartolome in Sulivan Bay. This little island was of great interest, because 

 from the summit a large number of old but intact hollow volcanic craters 

 were visible close by, some on shore and some just submerged; others 

 could be seen a little distance away on I. San Salvador. The shore collec- 

 tions yielded a Rhizoclonium from a damp spot near the shore, and from 

 the rocks a branching Lithophyllum, some encrusting corallines, and 

 minor items. Dredging was not productive. 



IsLA Baltra^s 



Directly north of and close to I. Santa Cruz lie North and South 

 Seymour islands (the latter I. Baltra), both quite small. The 1934 Han- 

 cock Expedition visited a small bay on the southwest side of Isla Baltra, 

 the larger of the two, particularly to observe and photograph the iguanas 

 there. These (Conolophus subcristatus Gray) were very different from 

 the serrate-crested, blackish marine iguanas, living in the scrubby wood- 

 land behind the beach and being dusty reddish brown with heavy bodies 

 and short tails; definitely wary, they were quite able to inflict a vicious 

 bite when captured, and ambitious to do so. Later, on shipboard, they 

 became reasonably tame. 



The vegetation of the island was rather open; behind the beach and 

 the bordering zone of scrubby trees the gradually rising ground became 

 very rough, of broken lava with scattered rather than contiguous shrubs, 

 cacti, and small trees. We did not penetrate far, having enough to do 

 along the shore. However, the collecting along the coast was not very pro- 

 ductive; mostly of broad and long beaches near where we landed, there 

 were occasional small rocky points. In the pools on these we secured 

 Hildenbrandia, LitJiophyllum, Lithothanviiurn, and Ochtodes. The 

 dredging done here was much more productive, from 9 meters yielding 

 quite a variety including a new Rhodymenia (R. decunibens), two Sar- 

 codiothecas, two Scinaias, Padina, and Sargassum. 



Isla Santa Cruz^* 



The Expedition visited Academy Bay on the south shore of Isla Santa 

 Cruz, (Indefatigable I.), second largest of the archipelago. In addition, 

 collections made by Dr. W. L. Schmitt on the east coast at Gordon Rocks 

 are listed in the systematic portion of the text. 



33 Ibid., p. 225, pi. 117, pi. 118, fig. 246. 



34 Ibid., p. 224, pi. 114, fig. 238, pi, 115, pi. 116, fig. 243. 



