THE VICTORIAN NATURALIST. 183 



sented by a large leaf-like polyclad Planarian seen under almost 

 every stone ; also a small pink Nemertine, the members of which 

 class are easily identified as such when the long characteristic 

 proboscis is everted through a pore at the extreme top of the 

 head. 



Of Echinodermata, besides the common little eight-rayed 

 Cushion Star-fish, Asterina calcars, there was seen a large five- 

 rayed form, measuring 5 inches from tip to tip, and possessing 

 a thick smooth epidermis of a uniform brilliant scarlet colour on 

 both upper and under surfaces. 



Of Segmented Worms (Annulata), the class Chaetopoda, or 

 those possessing bristles, was represented in the free-living or 

 errant order (Erantia) by a small member of the family Nereidse, 

 while the sedentary tube-builders (order Sedentaria) had two 

 examples, one of the family Terebellidae, and a Serpulid with pink 

 tentacles, its calcareous tubes being seen attached to almost 

 every stone and shell. Of the class Hirudinea, or Leeches, a 

 member of the family Ichthyobdellidse was noted. 



Of Crustaceans, several of the sub-order Isopoda were 

 taken — viz., a species of Idotea, which I think is new, and some 

 forms of the family Sphasromidse, the members of which may be 

 regarded as marine representatives of the terrestrial Wood-lice, 

 also a beautiful little example of the family Janiridse, Jseropsis (sp.) ; 

 several of the sub-order Amphipoda, amongst which was a small 

 Caprellidse — these are remarkable in having a very long, thin 

 thorax (pereion), and in having the abdomen (pleon) reduced to 

 a minimum, amounting practically to none, which gives them a 

 very extraordinary appearance. 



Another extraordinary looking creature may also be mentioned 

 — viz., a very small example of the Sea-Spiders (Pycnogonida), 

 the affinities of which are uncertain, but perhaps may be ranked 

 between Crustaceans and Arachnoids. These also possess 

 but a rudimentary abdomen, and without previous knowledge 

 one would be at a loss to tell which was head and which was 

 tail ; they look, indeed, to be very little more than legs, for these 

 are proportionately very pronounced. Some of the members of 

 the group are found at great depths. 



Most of the forms mentioned are classified and exhibited here 

 to-night, with a view of helping those interested in marine 

 biology. 



Mr. H. T. Tisdall, who acted as leader of the botanical section, 

 reports as follows : — 



Amongst the half-dried drift-weed we saw portions of the 

 huge Macrocystis pyrifera, and specimens of Phyllospora 

 comosa and Ecklonia radiata. Dr. Goebel, of Munich, 

 when he was out here last year, was much interested in the 

 Ecklonia. He gathered many specimens, not only of the 



