PYCNOGONIDA — G IGANTOSTRACA. 
Ardchn. 25 
Cordylochele , n. g., p. 343, type Pallene malleolata (Sars) ; lontjicolli 
n. sp., Lofoten la,, p. 344 ; brevicollis , n. sp., Vadsoe, p. 345. 
Nymphon microrliynchum , n. sp., p. 347 ; leptocheles , n. sp., Norway, 
p. 348 ; micronyx, n. sp., Matotschincharr, p. 350; longimanum, n. sp., 
p. 351. 
CJicetonymphon , n. g., for Nymphon hirtum (Fabr.) ; 'hirtip.es (Bell), 
sjnnosum (Goodsir) ; tenellum, u. sp., Finraarck, p. 353. 
Boreonympkon, n. g., for Nymphon rohustum (Bell), p. 354. 
TARDIGRADA. 
Plate, Ludwig, H. Beitrage zur. Naturgeschicbte der Tardigraden; 
Zool. Jahrb. iii, pp. 487-550, pis. xx-xxii. 
The first part of the paper treats of the anatomy and histology of the 
group ; the blood, alimentary, generative, excretory, muscular, and 
tiervous systems being discussed separately. 
Part ill deals with classification : — 
Table of genera, pp. 528 & 529. 
Echiniscus (C. Sch.), = Emydium (Doy.), p. 529; table of species, 
p. 530 ; hellermanni (Sch.), creplini (Sch.), spinulosus (Doy.), victor (Chr.), 
granulatus (Doy.), p. 531, filamentosus , n. sp., testudo (Doy.), muscicola , 
p. sp., aculeatus , n. sp., actomys (Sch.), hiunguis (Sch.), p. 532, similis , 
n. sp., p. 533 ; n. subg. Eschiniscoides, for sigismundi (Sch.), p, 533. 
Ly della (Duj.), p. 533 ; dujardini , p. 533* 
Macrobiotus , p. 533 ; table of species, p. 534 ; oberhauseri (Doy.), 
intermedins , n. sp., hufelandii (Sch.), p. 535, tetradactylus (Grf.), 
macronyx (Duj.), schultzei (Greef), tuberculatus } n. sp., p. 536. 
Doyerid, n. g. ; simplex , n. sp., p. 537. 
• Diphascon , u. g., p. 537 ; chilenense f n. sp., p. 538. 
Milnesium, p. 538 ; tardigradum (Doy.), alpigenum (Shr.), p. 538. 
The last part of the paper deals with the question as to the position 
to be assigned to this group in the animal kingdom. 
GIGANTOSTRAOA. 
Clarke, J. M. The Structure and Development of the Visual Area in 
the Trilobite, Phacops rana. Journ. Morph, ii, 1888, pp. 253-270. 
Foerste, A. E. Notes on Palaeozoic Fossils. Bull. Denison Univ. iii, 
pp. 117-137. 
Lichas halli , n. sp., p. 118, pi. xiii, fig. 4 ; tomentosus (Conrad), p. Ii8, 
pi. xiii, fig. 8 ; breviceps (Hall), pi. xiii, fig. 21. 
Phacops serratus, n. sp., p. 126, pi. xiii, fig. 1. 
Hall, J., & Clarke, J. M. Geological Survey of the States of New 
York. VII. Trilobites and other Crustacea of the Oriskany, Upper 
Helderberg, Hamilton, Portage, Chemung, and Catskill Groups. 
Albany & New York : 1888. 
An elaborate treatise on the Crustacea (including Trilobites, Eury- 
pterida, and Limulidce ) from the above deposits. All the species recorded 
