168 NATURAL SCIENCE [September 



as the moment the rock was overturned they would rush in and 

 seize any hapless worm or other small, soft animal which might be 

 exposed ; many fine specimens were lost in this way. Several 

 holothurians were found at Port Antonio which were not seen else- 

 where ; one of them was remarkable, not only for its large size and 

 unusual facility of locomotion, but also for its habit of eviscerating 

 as soon as brought to the surface of the water, so that it was impos- 

 sible to procure perfect specimens. Several species of echinoids, not 

 seen on the south side, were found here, but Toxopneustes was com- 

 paratively rare, only a few small specimens being found. The large 

 brown Echinantlms was not uncommon, and the huge Meoma, which 

 we found common near Drunkenman Cay, was plentiful and was 

 twice the size of those we saw on the south side. Two other very 

 pretty little spatangoids, Brissus and Echinoncus, were very common 

 in the same situations with Chirodota, The commonest sea-urchin 

 was the dark reddish-brown Ecltino mctra , which simply covered the 

 rocks in some places. Some very handsome gastropods were 

 collected on the reefs, and the large conch, the shell of which is so 

 common in America for ornamental purposes, occurs plentifully all 

 through the harbour. Along the sandy shore, near the lighthouse, 

 the same white Hippa which we saw at Montego Bay is common, 

 but on the shore of East Harbour, where the sand is mixed with 

 black mud, occurs a somewhat smaller dark-brown Hipipa, which 

 differs from the other in habits as well as in appearance. Dredging 

 proved more interesting than at Port Henderson, especially in East 

 Harbour where there is a good deal of eel-grass on the bottom. 

 Here we found large numbers of the beautiful Cubomedusa, 

 Charybdca, which we rarely saw at the surface, and in the same 

 locality the delicate olive-green sand-dollar, Mellita, is quite 

 common. 



The fresh-water and land fauna at Port Antonio is especially 

 interesting on account of the numerous streams and the proximity 

 of the hills. The streams abound with gastropods and shrimps, and 

 large, beautifully coloured cray-fish are common. Insects are not 

 particularly numerous or noticeable, but myriapods and arachnoids 

 are abundant. Pseudoscorpions and pedipalps are both plentiful, 

 and scorpions are not rare. Large centipedes with their yellow eggs, 

 two or three millimetres in diameter, were frequently brought to us 

 by the coloured boys, while equally large millipedes were common in 

 the woods. Only a single specimen of Peripatus was found, and 

 that was a small one ; but we were told that they were not con- 

 sidered exceptionally rare. The land-crab at Port Antonio is very 

 different from the one at Port Henderson, the two being distin- 

 guished as the ' black ' and ' white ' land-crab, respectively. Land- 

 molluscs, especially large slugs, are very common, and the eggs of 



