21. OPHICHTHTS. 63 



c. Type of 0. rutidodermatoides, 24 inches long. Batavia. From Dr. 



Blceker's Collection. 



d. Type of 0. htmhricoidcs, IG inches long. Batavia. From Dr. 



Bleeker's Collection. 



The differences in the dentition stated by Dr. Bleeker to exist 

 between the species named by him are not confirmed by an exami- 

 nation of the tyiHcal specimens, or are merely slight accidental varia- 

 tions in the arrangement ; and the figure which he gives of the 

 dentition of 0. rutidodermatoides is entirely erroneous. 



17. Ophichthys rhytidoderma. 



Ophisurus rutidoderma, Blvek. Verh. Bat. Gen. xxv. Mxircm, p. 30. 

 Ophichthys rutidoderma, Bleek. Atl. Ichth. Murcen. p. 55, taf. 29. 

 fig. 3. • 



Coloration uniform. The length of the head is contained five 

 times and a half in the distance of the gill-opening from the vent. 

 Snout pointed ; cleft of the mouth rather narrow, extending behind 

 the eye, two-ninths of the length of the head. Eye small, situated 

 in the anterior fourth of the length of the head. Teeth pointed, 

 fixed, all biscrial except the foremost of the maxillaries. Gill- 

 openings rather close together. The length of the pectoral fin is one- 

 third of that of the head. Dorsal fin lower than anal, commencing at 

 a short distance behind the extremity of the pectoral. TaU twice 

 as long as the body. 



Java. 



a. Type of the species, 38 inches long. Batavia. From Dr. Blee- 

 ker's Collection. 



18. Ophichthys macclellandi. 



Ophisurus macclellandi, Bleek. Vej-h. Bat. Gen. xxv. Murcen. p. 33. 

 Pisoodonophis macclellaudii, Kemp, Apod. p. 19. 

 Ophichthys macclellandii, Bleek. Atl. Ichth. Murcen, p. 57, tab. 15. 

 fig. 2. 



Coloration uniform. The length of the head is a little less than 

 one-fourth of the distance of the gill-opening from the vent. Snout 

 pointed. Cleft of the mouth of moderate width, extending behind 

 the eye, about two-sevenths of the length of the head. Eye small, 

 two-fifths of the length of the snout, situated in the anterior fourth 

 of the length of the head. Teeth pointed, fixed, biserial, eaxi pt 

 those on the vomer, which are arranged in three, and on the middle of 

 the bone in four series. Gill-openings rather close together. The 

 length of the pectoral is nearly one-third of the length of the head ; 

 dorsal fin rather low, commencing opposite to the extremity of the 

 pectoral. Tail twice as long as body. 



Java. 



n. Type of the species, 23 inches long. Batavia. From Dr. Blee- 

 ker's Collection. 



