62 A NATURALIST ON THE " CHALLENGER." 



identical with one occurring in Mexico. In Mexico and the 

 West Indies the animal occurs in the sea : elsewhere in fresh 

 water. 



I am greatly indebted to Sr. Jose M. Quirino Chaves, U. S. 

 Vice-Consul of Porta Praya, who most kindly sent me specimens 

 of the above described Crustacea, on my writing to him, when 

 preparing this journal for the press. The only specimen which 

 I secured on my visit was lost by accident on board the " Chal- 

 lenger." The Palsemon is called in the island " Christao," The 

 Atya, " Mouro." 



John Antonio said there were no fish in the San Domingo 

 stream, " cos river fresh water." He evidently thought that fish 

 were to be found only in the sea. 



We passed the village of San Domingo, which consists of 

 scattered thatched stone houses, and the road became worse and 

 worse, being sometimes knee-deep in mud. The ponies, small 

 fine-built bays, began to show signs of giving in, and soon 

 spurring would not make mine move further. I had to dismount 

 and flounder back to a cottage, where we had a rest, and fed the 

 ponies with grass. The excursion up the mountain is evidently 

 too long for one day, although John Antonio had declared before- 

 hand that it was an easy matter. I had been riding five hours, 

 and we were still a long way from the place where the actual 

 ascent commences. The ponies went very badly, at little more 

 than a foot-pace. It was raining more or less during the whole 

 time that we were in the valley. 



The Portuguese, at whose house we stopped, said that it was 

 impossible to ascend the mountain in the rainy season, because 

 of the falls of stones, or stone avalanches, which were common 

 and dangerous. All this I failed to find out before leaving the 

 town, the natives of the island there knowing nothing of the 

 mountain. At the house I got some coffee, which was grown in 

 the valley just below. 



I ascended the steep side of the valley, to a ridge about 

 1,500 feet above sea level, but did not find anything in the plant 



mistake in New Zealand instead of Samoa. M. Edwards places Atya 

 with Alpheus. Dana, (U.S. Exp. Ex. Crustacea), places Atya, Atyoides 

 and Caridina, in a special family Atyidse, next the Astacidae. 



