22 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 12 



The outer shore supported a conspicuous population of Padina Dur- 

 villaei, but not much else, except that where mangroves reached the shore 

 their roots again had a characteristic vegetation of Rhizoclonium and 

 Bostrychia, and mats of Centroceras on the rocks. Drifting near the 

 anchorage wzs a great amount of Sargassum, and one of the best collec- 

 tions of the expedition w^as made here, yielding four kinds. Dredging pro- 

 duced very little on this occasion. 



The second stop on I. Isabela vi^as south of Banks Bay, and here one 

 of the members of the crew^ gathered small algal samples from the shore 

 and from a lagoon. The only considerable amount vv^as of a new variant 

 of Chaetomorpha brachygona collected in the lagoon, but a Gelidium (G. 

 galapagensis) from rocks on the shore also seemed to be undescribed. 



The Velero III anchored at Tagus Cove, an excellent sheltered 

 harbor, and this permitted good dredging. Shore collecting yielded little 

 of algae, though the peculiar flightless comiorants and the marine iguanas 

 were most interesting. The dredge from 27-55 meters' depth brought up 

 quite a variety of plants, including Leptocladia, Kallymenia, Nitophyl- 

 luTHj and Scinaia; but, while some appear to be hitherto undescribed, the 

 types have been selected from other stations. Drifting material of Colpo- 

 menia was considerable and it was also seen attached; Sargassmn was 

 extremely abundant adrift and some ten numbers apparently different in 

 the field were segregated, representing perhaps seven variants, but not 

 all could be identified. 



A short launch run to a reef north of the Cove gave a much better 

 opportunity to collect between tidemarks. Here the algal flora was quite 

 luxuriant and good sets of specimens of several things were secured. Most 

 spectacular was the beautiful PlocaTnium pacificum, of which excellent 

 plants were collected. As less showy but scientifically much more impor- 

 tant may be mentioned the notable endemic Glossophora galapagensis, the 

 probably undescribed Spatoglossum albemarlensis, and a fine flat Galax- 

 aura, with many minor items. 



The next important stop, at Pt. Christopher near the southwestern 

 end of the island, was peculiar for the excellence of a few things secured, 

 although the botanist did not get ashore. The boat anchored so that Mr. 

 Chas. Swett could go ashore to take photographs of a spectacular group 

 of little volcanic cones and craters near the shore ; the landing was very 

 difficult, but in addition to bringing off his cameras intact he secured a 

 few handfuls of algae from the rocks. Meanwhile, the writer was able to 

 dip up from the boat other floating materials. From each of these sources 

 he secured novelties, Pterocladia robusta adrift and Laurencia opposito- 



