APPENDIX. 593 



derstoocl, for a rounded edge might be construed to mean round instead of 

 sharp, applying the term not to curvature of the sides. But on further con- 

 sideration, it seems to me that the adverb utrinque, applied in this case, will 

 do as well as coining a new word. Thorace utrinque deflexo lateribus rotundatis, 

 or vice versa, utrinque rotundato, lateribus deftexis, seems to me quite clear of 

 objection. What do you think? I don't see that we have any term for the 

 point of meeting of two joints. With respect to tibia and femur, geniculus 

 will do very well ; the other end of tibia and tarsus, if necessary to be noticed, 

 would with equal propriety be denominated calx or heel. With respect to the 

 point of meeting of two joints of antennas or palpi, no term strikes me that would 

 be proper: can you think of one, or would one be necessary? You observe 

 we have no term for ligula. Fabr. We agreed to call this part lingua. If a 

 diminutive for lingua is to be used, it might as well be used for all tongues of 

 insects that are properly such. I think the same name should be given to the 

 same part in all orders ; in fact, in use the ligula comes nearer to the tongue 

 of animals than the sucker-tongu.es. Palpi. I have no objection to employ 

 this as English instead of feelers. 



" Ovate and obovate. With respect to the abdomen of Coleoptera, I look 

 upon them to be ovate when broadest towards the thorax, and obovate when 

 broadest towards the anus ; and so with respect to the whole insect. With 

 respect to the thorax, Linne seems to reverse this plan, calling the thorax in 

 Carabus, obcordatus. His idea of ovatus is plain, from his calling Sphceridium 

 scarabceoides, ovatus. With respect to the head, Fabricius makes it ovate when 

 it is broadest at the thorax in the Staphylini of the family of linearis. The 

 thorax of Curculio Palmarum, Linne makes ovatus ; Curculio Germanus is cor- 

 pore ovato. So that, as it should seem, the ovate body is broadest towards the 

 head ; the ovate head is broadest towards the thorax ; the ovate thorax is 

 broadest towards the elytra ; but the ovate elytra or abdomen are broadest to- 

 wards the thorax: the reason of this seems to be, that the apex of the elytra or 

 abdomen must be reckoned at the anus ; but one would think the apex of the 

 whole body should not be reckoned as there. 



" Hypochondria. Having no anatomical books, I rely on the correctness of 

 your statement with respect to its station. I thought the second cavity of the 

 abdomen, which is analogous to our prospectus, was the region of the Hypo- 

 chondria, in which case the term would be proper. I have no objection (stating 

 our reasons for receding from Linne), to adopting Parapleura. 



" Lcevis et cequatus, fyc. We have a term (Icevigatus) which seems to answer 

 for this purpose, ' very smooth without elevations or depressions,' but somehow 

 or other we have not got Icevis. I see in the book in which I arranged Linne's 

 terms alphabetically, we have * Icevis, smooth, without elevations,' and 'Icevigatus, 

 smooth, without depressions.' I suppose we then thought one term sufficient. 

 Linne uses the term cequalis for your cequatus, it should seem, under Tenebrio 

 gigas and mortisagus. He appears to have wanted a term of this sort when he 

 describes Teneb. Icevigatus, and latipes, for he says, ' Icevis, elytris Icevibus? to 

 distinguish them from T. variabilis, which is Icevis, elytris elevato-punctatis. If 

 we use Icevis and Icevigatus, the former should signify the absence of sfrice, chan- 

 nels, foveolcs, orfossulce, and similar kinds of sculpture; and the latter, Avhich 

 implies a more intense degree, should denote the absence of points, granules, 

 or any roughnesses of. surface. It would sound well to say Icevis, elytris 

 Icevigatis. But, perhaps, you will think three terms necessary, one for the ab- 

 sence of smaller inequalities, another for the absence of larger, and a third for 

 the absence of all inequalities; then it would be cequatus or cequalis, without 

 larger elevations or depressions ; Icevis, without smaller elevations or depres- 

 sions ; Icevigatus, without any elevations or depressions. 



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