3r»2 ^ienii/fc InU'lligence- — Zoology. 



8. llyposklerite. 9. Labrador,: ->4i1[)..rAnorthite,f ^lebnalfi .xjaoi 

 '^ >Atnphodel ite — By to wnite — Latrobite — Indianite — Linseitti nor t 



.ntr.i> ^ ^ ^ ^ ,,\ ^„?l 



""'The following minerals probably belong to the Felspar Family, 

 viz., Saccharite — Barsowite — Couzeranite — Saussurite. — {BthnHi^ 

 J ahrbuch, 4: Heft, 1861. ' '- 



.vtfifndvl -lol ^.'^lOiaiH ZOOLOGY. ^t) 'k x)in;te9rn 



10. Tke Ammais of a Coral Heef, by John Magillivrdy\,lSs'q.^—^ 

 During our stay we were fortunate in having fine weather, light Winds, 

 and low tides, which enabled such as were inclined to look for shells 

 upon the reef, to do so under the most favourable circumstances. This 

 reef is of a great extent, with all the varieties of coral, mud, and sand, 

 and proved a most productive one. A sketch of the distribution of the 

 principal of its productions may be of interest to some. Many kinds 

 of fishes, Murena, Diodon, Balistes, Serranus, &c., are found in the 

 pools among the coral blocks ; the first of these, of bright colours, 

 variously striped and spotted, resemble water snakes, and are exceed- 

 ingly active, gliding through the interstices in the coral, and hiding 

 in its hollows, — they bite savagely at a stick presented to them, and 

 are by no means pleasant neighbours while wading about knee deep, 

 and with bare arms turning over the coral which they frequent. On 

 a former occasion 1 had been laid hold of by the thumb, and the wound 

 was a long time in healing. Crustacea are also numerous ; blue and 

 green Gonoductyli leap about with a sharp clicking noise — legions of 

 Mycteris subverrucata traverse the dry sands at low water — and in 

 the shallow muddy pools, dull green Thalamitae and Lupese swim off 

 rapidly, and smooth Calappae seek refuge by burrowing under the 

 surface. 



Of moUusca, two species of olive (0. erythrostoma and 0. Uuco- 

 phcBo) were found on the sandy margin of the islet — several Certthia 

 and Subulce (^S. maculata and S. occulata) creep along the sand flats, 

 and, with some fine Naticce, and a Pyramidella, may be found by 

 tracing the marks of their long burrows. Several Strombi and Nassa 

 coronata inhabit the shallow sandy pools ; the egg-shell and many 

 Cyprceidce occur under coral blocks, which when over sand, often har- 

 bour different kinds of cones — of which the handsome C. textile is 

 the commonest. A delicate white lima (L.fragilis) is abundant here, 

 merrily swimming away in the pool under an upturned stone, and 

 leaving its fringe-like tentacles adhering to the hand when seized. 

 Lastly, it would be improper to omit mentioning the very fine oysters 

 adhering to the roots of the mangroves. But these are only a small 

 portion of the shell-fish collected here. Among radiate animals, 

 several OpAmroe and Ophiocomoi and other Asteriadce^ with two kinds 

 of Erhimi.t, are also plentiful under blocks of coral (A.Hvxa and 



