4.04 REPORT—1899. 
perfect specimens seem to show a fanlike structure of internal tubes. 
There is only one species, the one you mention.’ He adds: ‘I have 
referred Ceratiocaris pusilla to Rhinocaris (see “Seventh Report,” p. 64, 
and “Thirteenth Report,” p. 344) as being the nearest genus, but it appears 
to have a fixed rostrum (attached to one valve), though possibly the suture 
may run through from the apex of the shield.’ 
§ IV. 1897.—In the ‘ Geological Magazine,’ Dec. IV. vol. iv. (1897), 
pp. 197 and 198, a new genus of Paleozoic Phyllopods was recognised as 
Estheriina in the Cardinia Freysteni, Geinitz, and the Estheria limbata, 
Goldenberg ; the distinctive features having been determined by the study 
of some Brazilian forms (of Cretaceous? age), Jbid. pp. 198 and 201. 
These have the umbonal area of each valve extremely exaggerated, the 
remainder being thin, flat, and marked with more numerous and more 
delicate concentric lines. 
A Permian specimen, from Frankfurt-on-the-Maine (described and 
figured in the ‘Geological Magazine,’ September 1899, p. 394, pl. 15, 
fig. 7), found by Baron von Reinach, represents a highly swollen separate 
umbonal area (such as occurs isolated with those in Brazil), and has been 
named Lstheriina extuberata, Jones. 
$V. 1898.—Mr. J. M. Clarke, State Geologist of New York, in the 
‘ Fifteenth Annual Report of the State Geologist,’ gave a series of ‘ Notes 
on some Crustaceans from the Chemung Group of New York State,’ and 
therein described and figured (pp. 731-733, two figures) a singularly 
ornamented Phyllocarid Crustacean, found in the Chemung Sandstone at — 
Alfred, N.Y. It is related to Echinocaris, but, besides other differences, 
it has a deep oblique sulcus on the valves, and these are fringed with long 
strong spines. Its name, Pephricaris horripilata, has reference to its 
extravagant decoration. 
§ VI. 1899.—M. Canavari, in the ‘ Proc. Verb. Soc. Toscana Sci. Nat. 
Pisa,’ 1899, pp. 150-153, noting the occurrence of Silurian Entomostraca 
in Sardinia, mentions some Ostracoda, such as Beyrichia reticulata, 
Bornemann, B. simplex, Jones, Entomis migrans and dimidiata, Barrande, 
and some undescribed species; also Cypridina and Bolbozoe. Of the 
Phyllopoda he mentions fragments of Ceratiocaris and Aristozoe, and 
several specimens of Aptychopsis prima, Barrande. 
§ VII. 1899.—Dr. G. F. Matthew, in his ‘Preliminary Notice of the 
Etcheminian Fauna of Newfoundland’ (‘ Bull. Soc. Nat. Hist. New 
Brunswick,’ XVIII. vol. iv. p. 189), describes and figures single valves 
of the minute Aptychopsis Terranovica, p. 194, pl. 3, fig. 5, and its ‘ muta- 
tion’ arcuata, p. 195, pl. 3, fig. 6. 
§ VIII. 1899.—In the ‘ Monograph of Dithyrocaris’ (‘ Paleont. Soc.’), 
part iv. p. 183, we have determined that the Devonian valve from Saal- 
feld, pl. 22, fig. 2, is a Calyptocaris, not a Chenocaris as at first placed, 
p. 133 ; also in the ‘Fourteenth Report,’.1899, p. 521; and that it is 
allied to Calyptocaris striata from the Lower Carboniferous Sandstone of 
Scotland. 
§ IX. 1899.—1. Two Lower Silurian specimens from Brittany, in M. 
Paul Lebesconte’s collection at Rennes, were mentioned in the ‘ Seventh 
Report on Paleozoic Phyllopoda,’ ‘ Report Brit. Assoc. for 1889 (1890),’ 
p. 65. These, although pressed and distorted in the slaty schist, are 
certainly allied to, though not identical with, Dithyrocaris, and are 
evidently the oldest examples of the group. On the back of one of the 
specimens a single but damaged valve supports our determination of their 
a 
