Classification of Teleostean Fishes. 267 
developed on most of the preecaudal vertebree, with the ribs 
attached to their upper surface. 
All these families are nearly related, and may be placed 
together as “'Trachinoidea” if it be thought advisable to 
retain the group. All lack the air-bladder. 
The following tabulation of the numbers of vertebra (pre- 
caudal+caudal) in the skeletons examined shows that too 
great an importance has been attached to this character in 
defining higher groups, a view which accords with the results 
obtained in other large families of fishes *. 
Lrachinus draco .......++50 114+32=43. 
CODEN Sey sgerey PA acinar 10+25=35. 
Notothenia tessellata........ 16+383=49. 
———= CONUCCNS: lo daits velit sic 194 54=553. 
Champsocephalus esox ...... 28+29=57. 
Parapercis nebulosa ........ 11+19=80. 
Pseudaphritis Urvillit ...... 14+27=41. 
GOOLON aa ok cast Tee Ni Gesclor <P 14+27=41. 
Eleginops maclovinus ........ 20+ 25 = 45. 
Bovichthys varregatus........ 15+23=38. 
Harpagifer bispinis ........ 12+4-24= 36. 
Percophis brasilianus ........ 22435=57. 
Leptoscopus mucropygus 10+338=48. 
GILGUSELCE) Siw entra peat ie 10+36=46. 
Uranoscopus scaber.......... 12+138=25,. 
Anema monopterygium...... 14416=30. 
Cathetostoma le@ve .......... 14+16=30. 
The Trichonotide (Trichonotus, Teniolabrus, and Hemero- 
cetes) and the Callionymide (Callionymus and Vulsus) are 
closely related to each other and to the Trachinoids, and 
might be included among them +. The fenestra is between 
the scapula and the coracoid, and only one or two pterygials 
are in contact with the scapula. A subocular lamina is 
absent ; there are no epipleurals ; the parapophyses are short 
and restricted to the posterior preecaudal vertebrae. In the 
Trichonotide the post-temporal is forked and detached from 
the skull, as in the Trachinoids ; in the Callionymide it is 
also forked, but closely adnate to the skull. The vertebral 
column of Callionymus is very peculiar, and recalls some of 
the Plectognaths: some of the preecaudal vertebra have bifid 
processes to the neural arch, simulating a “ spina bifida,” and 
the last two caudal vertebra are much enlarged. T'richonotus, 
* Cf, tabulation of vertebrae in Serraninee, Cat. Fish. 2nd ed. i. p. 115. 
| The genus Rhyacichthys, n. n. (Platyptera, C. & V., nec Meig.), from 
the fresh waters of Java, Celebes, the Philippines, and China, which so 
closely resembles in its adaptive features Chimarrhichthys, Homaloptera, 
and Haostoma, belongs to the Gobiide. 
