REPTILIA. 
133 
species known; indeed tlie memoir is indispensable to all work- 
ing at tins suborder. The following is a brief outline of the 
systematic arrangement : — 
Fam. 1. GAviALiDiR : 1. Gavialis (sp. 1) ; 2. Tomistoma (sp. 1). 
Fam. 2. CnocoDiUDiE : — Normal : 1. OopJioUs (sp. 2) ; 2. BomUfrons 
(sp. 2) ; 3. Balinia (sp. 2) ; 4. Crocodilm (sp. 1) ; 5. MoUnia (sp. 2). Aber- 
rant : 6. Haler osia (sp. 1) ; 7. Mecistops (sp. 1). 
Fam. 3. Alligatorid^ : 1. Jacare (sp. 7) ; 2. Caiman (sp. 2) ; 3. Alli- 
gator (sp. 1). 
Of these 23 species two are described for the first time, viz. Jacare multi- 
scutata^ p. 1G4, from Brazil, and Jacare Mrticollis, p. 165, from Demerara. 
The author has entered very carefully into the history or synonymy of all 
species. Besides the numerous woodcuts, the memoir in illustrated by four 
plates : 1. Skulls of Bomhifrons nigricans and Haler osia nigra ; 2. Skulls of 
Mecistops cataplir actus and MoUnia intermedia ; 3. Jacare occllata ; and 4. Ja- 
carc longiscutata. 
Crocodilm niger. Mr. Cope claims priority for his Osicolcemus against 
Halcrosia (Gray), and states that his 0. tetraspes should not bo identified with 
II. nigra (Gray). Broc. Ac. Nat. Sc. Philad. 1807, p. 209. 
Halcrosia afzelii, sp. n., Lilljeborg, Broc. Zool. Soc. 1807, p. 715, Sierra 
Leone. 
Alligator. On its myology see Hair, Journ. of Anat. & Bhysiol. i. 1867, 
pp. 26-41. 
rhynchooephalia. 
Hatteria. Br. Gunther has examined the anatomy of this singular Saurian. 
An abstract of the paper appeared in Broc. Boy. Soc. 1867, pp. 460-462, and 
Ann. &Mag. Nat. Hist. 1867, xx. pp. 128-129; and the entire paper in Bhilos. 
Trans, vol. clvii. pp. 595-629, pis. 26-28. Its chief peculiarities consist in the 
structure of the skull, amphicoelianvertebra3 (Owen), uncinate processes of the 
ribs, presence of a complicated abdominal sternum, in the dentition, absence 
of a copulatory organ, &c. The position of Hatteria in the system has been 
indicated above (p. 131). 
Hatteria punctata figured by Gray, Austral. Liz. pi. 20. 
LACEITTILIA. 
Mr. St. G. Mivart lias supplied a great desideratum in work- 
ing out the details of the myology of a Lacertian type (Iguana), 
and illustrating it with a sufficient number of woodcuts., Broc. 
Zool. Soc. 1867, pp. 766-797. 
In our abstract of Mr. Copf/s system of Saurians (Zool. 
Record, ii. p. 109), the second suborder Nyctisaura/^ with 
the single family of Nyctisaura, and the fourth suborder 
Ophiosauri, with the single family of Aniphisbcenia/’ have been 
inadvertently omitted 
* My attention has been called to this omission by a remark of Mr. Cope 
in Journ. Ac. Nat. Sc. Bhilad. v. p. 67, footnote. The omission is partly Mr. 
