318 
Prof. T. R. Jones on the 
cc Petherwin ” is mentioned, at p. 27, among several localities 
for Cypridina (. Entomis ) serratostriata , Sandb.* 
In the Quart. Journ. Geol. Soc. vol. xxiii. (1867) pp. 618 
and 670, Mr. Etheridge refers u Cypridina serratostriata ” to 
the English Upper-Devonian (Petherwin), probably on MM. 
Sandberger’s authority. 
The occasion and circumstances of the first discovery of 
C6 C. striatostriata ” in South Devonshire are given in detail 
by Fr. Adolph Roemer in the report of a geological excursion 
which he had made with Mr. R. A. C. Godwin-Austen, from 
Newton-Bushel to West Ogwell, Chudleigh, and other 
localities (see the c Neues Jahrbuch f. Min. &c.,’ Jahrg. 
1853, pp. 810-818). At page 812 this little fossil (now 
known as Entomis serratostriata) is mentioned as occurring 
in a series of red schists near Bickington, at the south-eastern 
foot of the Ramshorn Down — a locality quite distinct from 
those mentioned by Dr. E. Kayser t as yielding the same 
fossils J, during a tour in Devon after the Meeting of the 
Geological Congress in London in 1887. 
Pursuing his researches in South Devon, Mr. Ussher, 
making the Official Geological Survey of the district, found 
that the Z^nfowm-slates (equivalent to the mis-named u Cypri- 
dinen-Schiefer ”) u occur in the area between Ivingsteignton 
and Bishopsteignton, on each bank of the Teign, where the 
characteristic Posidonomya and Entomis , with an occasional 
imperfect Trilobite (perhaps Phacops ), have been found in 
them. On the other side of the Teign alluvium from Knowles 
Hill, Newton-Abbot .... to Highweek and Houghton, 
their occurrence is similarly proved by fossil evidence. They 
are recognizable by similar characteristics near Ilsham and 
Anstey^s Small Cove. 
u In Whiteway Farmyard greenish-grey clay-slates were 
identified as { Cypridinen-Schiefer ’ by Kayser, who mentions 
the occurrence of numerous examples of Posidonomya venusta 
as well as Trimerocephalus (cf. cryptophthalmus) in them. At 
* My friend Mr. W. A. E. Ussher tells me that he sees no reason why 
Entomides should not occur at South Petherwin ; for the Petherwin beds 
are Upper Devonian and somewhat similar in places to the Livaton beds 
(between Bickington and Bovey), and they are correlated with the 
Pilton beds ; he also regards them as being correlative with the zone of 
Rhynchonella letiensis in the Ardennes. 
t “ Ueber das Devon in Devonshire und im Boulonnais,” Neues Jahrb. 
f. Min. &c., 1889, vol. i. part 2, p. 185. 
J On the road from Ugbrooke Park to Lewell (near Chudleigh), and at 
Whiteway Farm, about 3 miles south-east of Chudleigh. These places 
are north-east of the Bovey valley ; Bickington is south of that valley. 
