556 ADDENDA ET COERIGENDA. 



Page 80. Latmnculus albus. 

 The number of the fin-rays varies a little : — 



All the specimens, the longest of which is 21 lines in length, have 

 lost the scales ; there were 25 in a longitudinal series, if the series 

 correspond to the divisions of the muscles. 



Qobius pellucidus of Nardo and Kessler is probably identical with 

 L. albus ; the only difference which I can make out, by a comparison 

 of Kessler's description with the Scotch specimens, is in the relative 

 size of the eye, which is rather larger in G. pellucidus. Kessler's 

 specimens were 17 lines long. 



2. Latrunculus pellucidus. 



PAphya cobitis, Rondel, p. 210. 



GoDius pellucidus, Nai-do, Giorn. Fis. Pavia, iii. 1824, Osservaz. etc. p. 7. 



Gobius pellucidus, Kessler, Bull. Soc. Nat. Mosc. 1859, 2. p. 260. 



I>-Hn^3-/-il^- L.lat. 24-25. 



The diameter of the eye is one-fourth of the length of the head 

 (in L. albus one-fifth), equal tc (in L. albus less than) the extent of 

 the snout, and more than the width of the interorbital space. 

 Transparent. 



Adriatic ; Black Sea. 



Page 85. The characters of Gobiosoma molestum are the following : — 

 1 a. Gobiosoma molestum. 



Girard, Proc. Acad. Nat. Sc. Philad. 1858, p. 169, and U. S. ^ Mex. 

 Bound. Surv. Fishes, p. 27. pi. 12. fig. 14. 



D. 7 I 12. A. 12. 



The length of the head is one-fourth of the total. Jaws equal 

 anteriorly. The maxillary does not extend to below the centre of 

 the eye. Ventrals short. Dusky-brown, fins with blackish streaks. 

 (Girard.) 



Indianola, Texas. 



Page 91. Benthophilus macrocephalus. 



Add to the synonymy : — 



Benthophilus macrocephalus, Eichw. Fauna Casp.-Caucas. p. 210. 

 tab. 3. figs. 3 a-c ; Kessler, Bull. Soc. Nat. Mosc. 1859, ii. p. 266. 



Kessler has found that the number of the fin-rays is subject to 

 some variation : — 



D. 3-4 1 ^. A. -i-. 



I 6-9 7-9 



Nordmann and Eichwald appear to have described the gill- open- 

 ings of too smaU a width ; according to Kessler, they are narrower 

 than in Gobius. 



