REMARKS ON THE CIRRHIPEDES. 29 



pores, differently situated, which appear to be the orifices 

 of ovaries ; a clear proof, sliould such be the fact, that 

 every tape- worm is not a compound, but a single animal. 

 The common, or best known species, Tcenia lata, is one 

 of the most cruel enemies to mankind; it occasions ex- 

 cruciating agonies, and frequently produces death : it 

 has been said to attain the incredible length of upwards 

 of a hundred feet ; but that of twenty appears much more 

 likely. We need not dwell further on this class of 

 animals^ which appear to have been created as afflictions 

 to the human race, and whose natural arrangement, 

 although so much has been written upon their structure, 

 appears to us to be involved in considerable obscurity. 

 They form, indeed, a part of that varied chain in cre- 

 ation, which unites, by imperceptible and graduated 

 links, the lovely and the disgusting — the inviting and 

 the repulsive. But where there is so much to admire 

 and to fascinate, the general reader, for whom our pages 

 are chiefly intended, will turn from those creatures 

 which prey upon his perishable body, that he may be- 

 stow more admiration on the varied hues and elegant 

 forms of the butterfly — a fitting emblem of his own 

 immortal soul. 



(26.) The CiBRHiPEDES, better known by the familiar 

 name of Barnaclen, are, in many respects, the most im- 

 perfect of aU the annulose animals. They are all marine, 

 living in the ocean, and are attached to other bodies, as 

 rocks, pieces of floating timber, the bottoms of vessels, 

 and even to the backs of marine animals. Their num- 

 ber is but few, and their geographical range very wide. 

 In general appearance, they have some resemblance both 

 to limpets and to bivalve shells; and this probably 

 induced Linnaeus, in the infancy of science, to place 

 them with the Mollusca, or shellfish, where they will 

 still be found, even in modern Introductions to Con- 

 chology, under the division of multivalve shells ! The 

 resemblances, however, here alluded to, are but very 

 slight, even in external appearance ; whUe the true 



