1870.] GUPPY—CARIBBEAN SERIES. 413 
They consisted of fourteen very large vertebre of very slightly 
proceelian character (with processes in perfect preservation), bones of 
the pelvis and extremities, and a most singular one shaped like the 
ischium of a Plestosawrus found in the other ravine, but much more 
angular. Here also a small hard concretionary boulder, as brilliant 
when fractured as fine granite, contained a very beautiful Stene- 
opteris. 
The whole collection, being brought safely to Christchurch, was 
forwarded to England in the ‘ Matoaka,’ which sailed in May last, 
but has not since been heard of. 
Discussion. 
Mr. Boyp Dawkins remarked on the presence of Crocodilia in 
New Zealand being proved by the proccelian vertebree. 
4. On the Discovery of Organic Rematns in the CARIBBEAN SERIES 
of TrintpaAp. By R.J. Lecumers Gurry, Ksq., F.L.S., F.G.S., Pre- 
sident of the Scientific Association of Trinidad, &c. &c. 
[ Abstract. ] 
Tue author described the formation called the ‘Caribbean Group ” 
by the Government Geological Surveyors of the West Indies as 
forming a considerable portion of the littoral cordillera of Venezuela, 
and as extending eastward through the north of Trinidad to Tobago. 
It consists of gneiss, gneissose, talcose, and micaceous slates, and 
compact limestones. The metamorphic rocks of Guiana lately de- 
seribed by Mr. Ralph Tate (Quart. Journ. Geol. Soc. vol. xxv. 
p. 343) are regarded by him as of the same age as those of the lit- 
toral chain of Venezuela; and it is probable that the series occurs 
again in New Granada. Mr. David Forbes mentions the occurrence 
of gneissic and metamorphic strata on the Bolivian coast and in the 
desert of Atacama. According to M. Pissis, an extensive series of 
micaceous and gneissoid strata underlies the Silurian beds of [li- 
mani in Bolivia; and Mr. Darwin alludes to strata of clay-slate &c. 
older than the Silurians of the Chilian Andes. The author con- 
sidered that the Caribbean formation will be found to mark one of the 
*« stable areas” insisted upon by Prof. Dana. 
The northern range of mountains of Trinidad is composed en- 
tirely of rocks belonging to the Caribbean formation. The section 
from N.N.W. to 8.S.E. from the sea, through the valleys of Diego 
Martin, Maraval, and St. Ann, shows the following succession of 
rocks in ascending order :— 
1. Mica-slates, with quartzose sandstone; 2. Crystalline lime- 
stone; 3. Argillaceous slates, with hard sandstones, conglomerates, 
and thin beds and strings of calcareous matter; 4. Compact lime- 
stone, forming the Laventille hills bordering the plain of Caroni. 
The total thickness of these rocks in Trinidad is stated by the au- 
thor at upwards of 10,000 feet ; and he is of opinion that the thick- 
