J The Philippine Journal of Science 



Plate 11 



1. Gymnothorax chilospilus Bleeker; X 2. 



2. Gymnothorax favagineus Bloch and Schneider, from a photograph. 



3. Gymnothorax zonipectis Seale, from a color sketch made at Zam- 



boanga, by T. S. Espinosa. 



4. Gymnothorax richardsoni Bleeker, from a color sketch made at 



Sitanki, by T. S. Espinosa; x 0.5. 



. 1. Anguilla celebesensis Kaup, dentition; a, vomer and maxillaries; 

 b, mandibles. After Weber and Beaufort. 



2. Muraenichthys gymnopterus Bleeker, dentition; a, intermaxilla- 



ries; b, maxillaries; c, vomer; d, mandibles, x 3. 



3. Pisodonophis boro (Hamilton Buchanan), dentition; a, intermaxil- 



lary plate; b, maxillaries; c, vomer; d, mandibles, x 2. After 

 Weber and Beaufort. 



4. Ophichthus cephalozona (Bleeker), dentition; a, intermaxillary 



plate; 6, maxillaries; c, vomer; d, mandibles. X 2.5. 



5. Ophichthus grandocuLis (Cantor), dentition; a, intermaxillary 



plate; 6, maxillaries; c, vomer; d, mandibles, x 3. 



6. Ophichthus celebicus (Bleeker), dentition; a, intermaxillary plate; 



b, maxillaries; c, vomer; d, mandible, x 3. 



7. Csecuh, taylori sp. nov., dentition; a, intermaxillary plate; b, max- 



illaries; c, vomer; d, mandibles, x 4. 



8. Moringua cagayana Seale, dentition; a, intermaxillaries ; b, max- 



illaries; c, vomer; d, mandibles, x 5. 



9. Aphthalmichthys macrocephalus Bleeker, dentition; o, intermax- 



illary plate; b, maxillaries; c, vomer; d, mandibles, x 4. 



10. Echidna delicatula (Kaup), dentition; a, intermaxillary plate; b, 



maxillaries; c, vomer; d, mandibles. X 4. 



11. Echidna amblyodon Bleeker, dentition; a, intermaxillary plate; 



b, maxillaries; c, vomer; d, mandibles, x 4. 



12. Gymnothorax pictus (Ahl), dentition of two specimens, showing 



variation; a, intermaxillary; b, maxillaries; c, vomer; d, man- 

 dibles, x 2. 



13. Gymnothorax brunneus sp. nov., dentition; a, intermaxillary; b, 



maxillaries; c, vomer; d, mandibles, x 4. 



14. Uropterygius supraforatus (Regan), dentition; a, upper jaw; b, 



