108 RECORDS (.)F THE Al'STltALIAN MUSEl'.M. 



outer lobe (oj.) ; it is seen to end on the posterior face of the 

 organ, where it meets the tracheal stalk. The latter is short, 

 widened distally, its end beino' directed upwards and leaning 

 against the base of the tibia. The coxo-femur (cf.) is shell- 

 sliaped with a concave posterioi- surface ; when viewed from 

 the anterior surface, it entirely conceals the tibia ; its edo-es 

 are folded back on the sides of the organ, but do not encroach 

 on the posterior surface. The tibia (t.) is shoi't and wide, 

 lodged in the concavity of the preceding joint. 



Posterior gonopods connected together by a chitinized bridge 

 (PI. XV., fig. 25). Each gonopod is two-jointed ; the proximal 

 joint is constructed as in Tn'ijdin'iil h.-< and shelters the basal, 

 bladder-like swelling of the seminal duct, in which opens the 

 so-called prostatic duct. The distal joint is a stout and 

 comparatively short, feebly curved organ, the outer surface of 

 which is strongly convex and smooth, while the inner is deeply 

 excavated, thus offering some resemblance with a tablespoon. 

 The concavity is lined with a soft membrane. The seminal 

 duct is twisted above its basal swelling and is seen to wind its 

 way in the membranaceous lining of the distal joint, and to 

 open above the middle of the concavity of the joint. Ti-acheal 

 stalks normal, as in 7V/';/^y//////^s■. 



Labral dimples 2 -\- 2. Pores opening in the pi-ozonite. 



The Genus Afuntli'ml ux was created by (lervais^-^ with A. 

 hj((iiiril]ei, he (xuillou, as type specimen ; no detailed descrip- 

 tion of the sexual appendages has ever been given. 



The same species has been redescribed by Iv Daday de 

 Dees under the name of S/iirolxiInx deufatiis^^ but the figures 

 given by the Hungarian scientist (PI. iii., figs. 6 and 7) only 

 j'epi'esent the anterif)i' gonopods and leave many particulars in 

 the dark. 



The authori'^ endeavoured to analyse the copulatoi-y append- 

 ages of a similar species, J(vu/^////J/rv iiKiiiidniiii, Bouvier; but 

 the said species happens to belong to the genus J']nce)itni}io1its, 

 contemporaneouslv proposed bv Pocock^*^ foj' an I iHlian species, 

 J'j. tittindiis. 



'» Gcrvais— Ann. Sc. Nat., Zool. (.'-), ii., 1S44. 

 1^ Daday— Term. Fiiz., \vi., 1S9;;, p. lOl. 



'•''' Brolcmann — Lc ^cnrc Acantliii<liis, Ann. Soc. l-'ntoin. 

 France, Ixxii., 1903, p, 4(i!t-477, pi. viii. 

 '« Pocock— Ann. .Vlat^. Nat, Hist. (7), xii., 191).;, p. 5'28. 



