Dr. A. Giinther on new Species of Fishes. 441 



nearly identical with C. Vortex, F. & M. sp. Ann. N. H. ser. 3. 

 V. p. 113. 



24. Rosalina globularis, D'Orb. Ann. Sc. N. vii. p. 271, no. 1, 

 pi. 13. f. 1-4. Modele no. 69. Widely distributed, fixed to sea- 

 weeds and corals. This is a variety of Discorbiiia Turbo, D'Orb. 

 sp. Prof. Williamson figures it in his ' Monograph Brit. Rec. 

 Foram.' pi. 4, f. 104, 105, as " Rotalina concamerata, young,'' 

 and refers (p. 52) D'Orbigny's Rosalina globularis to R. con- 

 camerata, Montagu, sp.; but we believe that Montagu's Serpula 

 concamerata is a variety of Planorbulina farcta, and that William- 

 son's adult R. concamerata (f. 101-103) is Pulvinulina repanda. 



25. Textularia aciculata, D' Orb. Ann. Sc. N. vii. p. 263, no. 15, 

 pi. 11. f. 1-4, From the Adriatic. The same as T. pygmcea, 

 D'Orb., ibid. p. 263, no. 13 ; and Modele no. 7. 



26. Triloculina trigonula, Lamarck, sp. Ann. Sc. N. vii. p. 299, 

 no. 1, pi. 16. f. 5-9. Modele no. 93. Fossil near Paris, Soissons, 

 and Valognes. A Miliola of not uncommon occurrence. 



27. Truncatulina refulgens, Montfort, sp. Ann. Sc. N. vii. 

 p. 279, no. 5, pi. 13. f. 8-11. Modele no. 77. This is Planor- 

 bulina farcta, F. & M. sp., var. refulgens. See above, p. 437, 



28. Uvigerina pygmsea, D' Or6. Ann. Sc. N, vii. p. 269, no, 2, 

 pi. 12. f. 8, 9. Modele no. 67. Fossil near Sienna. The typical 

 form of Uvigerina : its home may be said to be at about 100- 

 300 fathoms in warm seasj smaller individuals are abundant in 

 shallower as well as in deeper water : the ribbed shells, as here 

 figured, ax-e more abundant in shallow than in abyssal water, 



29. Vulvulina Capreolus, D'Orb. Ann. Sc. N. vii. p. 264, 

 no, 1, pi. 11. f. 5-8, Modele no. 57. From the Adriatic. A 

 Textularian form, Ann. N. H. ser. 3. xi. p. 93, &c. 



XLV, — On new Species of Fishes from the Essequibo. 

 By Dr. Albert Gunther. 



A COLLECTION of frcshwatcr fishes made in Guiana by Mr. 

 Ehrhardt for the British Museum contained so many duplicate 

 specimens, that probably a portion of them will reach other col- 

 lections before the part of the ' Catalogue of Fishes' containing 

 their descriptions will be published; therefore I add diagnoses 

 to the names under which the new species are deposited in the 

 British Museum, referring for detailed descriptions to the forth- 

 coming parts of that work, 



Acara punctulata. 

 D. f . A. |. L. lat, 26. L. transv. 3/8. 

 Three series of scales on the cheek. The height of the body 

 Ann. ^ Mag. N. Hist. Ser. 3. Vol. xii. 29 



