ON SOME NEARCTIC SPECIES OF AGABUS, WITH THE DESCRIPTION OF A NEW SPECIES. (COLEOPTERA: DYTISCIDAE)

1939 ◽  
Vol 71 (10) ◽  
pp. 217-221 ◽  
Author(s):  
Hugh B. Leech

The possibility of the above synonymy was suggested in a letter from Mr. W. J. Brown of Ottawa. Through the kindness of Dr. K. G. Blair and Mr. J. Balfour-Browne of the British Museum, I have been able to study a male and a female of A. elongatus (Gyllenhal), and to compare them with two male and two female paratypes of A. bryanti Carr.

1900 ◽  
Vol 7 (12) ◽  
pp. 560-561
Author(s):  
G. C. Crick

The name Nautilus clitellarius was given by J. de C. Sowerby to a Nautiloid from the Coal-measures, Coalbrookdale, Shropshire, and the description was accompanied by three figures, each representing a different specimen. In 1884 the species was included by Professor Hyatt in his new genus Ephippioceras. In 1891 Dr. A. H. Foord found a new species, Ephippioceras costatum, which was said to be “distinguished from E. clitellarium (to which it is, however, very closely related) by the character of the septa and by the surface ornaments. The septa in E. costatum do not form such an acute lobe upon the periphery as do those of E. clitellarium, and they are also a little wider apart in the former species than they are in the latter. Moreover, E. costatum is provided with prominent transverse costæ, which are strongest upon the sides of the shell where they swell out into heavy folds. These costæ are directed obliquely backwards, and cross the septa at an acute angle, passing across the periphery and forming a shallow sinus in the middle. None of the specimens in the British Museum have the test preserved, so that the ribbing has only been observed upon casts. The costæ are equally well developed upon the body-chamber and upon the septate part of the shell in the adult, but they were either very feeble or altogether absent in the young.” A re-examination of the specimens in the Museum collection shows that the separation of the two forms is quite justifiable.


1865 ◽  
Vol 2 (7) ◽  
pp. 12-13 ◽  
Author(s):  
John Rose

Amongst a number of Crinoidal remains collected from the Mountain-limestone near Clitheroe, in Lancashire, I found one which differs from any I have before seen, and which is belived to be new. This is as yet unique, and is now in the British Museum.


1977 ◽  
Vol 55 (11) ◽  
pp. 1885-1891
Author(s):  
H. J. Squires

Axiopsis (Axiopsis) baronai is a new species of Thalassinidea (family Axiidae) from the Pacific coast of Colombia in depths of 5–9 m with soft mud substrate. A male holotype and three female paratypes are deposited in the Smithsonian Institution, Washington. D.C. Compared with other species of the genus it is large, reaching 94 mm total length (35 mm cl (measurement from the orbit to the posterior edge of the carapace in the midline dorsally)) in six specimens examined. It resembles A. (A.) consabrina but major differences include the similarity in size of first chelae. more spines on carinae of gastric region and only two or three spines laterally on the telson.


1884 ◽  
Vol 1 (12) ◽  
pp. 545-547 ◽  
Author(s):  
R. Lydekker

In plates lxii. lxvii. lxviii. of part 7 of the “Fauna Antiqua Sivalensis” (1847) a large number of remains of Merycopotamus (nearly all of which are in the collection of the British Museum) are figured under the name of M. dissimilis, although some of them are distinguished as var. major and others as var. minor; and it thus appears that at that date the authors of the work quoted referred all the remains to one species. It is stated, however, in Falconer's “Palæontological Memoirs,” vol. ii. p. 407, note 4, that in 1846 Falconer considered that there were two species, which he proposed to call M. dissimilis and M. nanus; and some of the smaller specimens figured in the “F. A. S.” under the former name, bear upon them the latter name in Falconer's handwriting. In some manuscript notes of Falconer's, written at a much later date, the name M. nanus is once again employed (although the tooth to which it was applied does not belong to Merycopotamus at all); and it would therefore seem that Falconer had by that time reverted to his original view.


1942 ◽  
Vol 33 (3) ◽  
pp. 171-174 ◽  
Author(s):  
J. F. Perkins

In 1939 I dealt with two species of Ephialtes which parasitise the codling moth, Cydia pomonella, L., namely E. caudatus, Ratz., and E. crassiseta, Thoms., and showed how they differed from E. punctulatus, Ratz. (=extensor, Tasch.) with which species they had formerly been confused. During 1940, F. J. Simmonds, of the Imperial Institute of Entomology, sent to the British Museum a series of a species of Ephialtes bred from this same host in the south of France. This is a new species, and it was previously known to me only from a single female which had been bought by D. S. Wilkinson from O. Schmiedeknecht, who had incorrectly named it Pimpla roborator, F. In fact, this new species does not belong to the same species group as Ephialtes (Exeristes) roborator, F., Grav. (=Pimpla roborator, F., Schmied.), which is a well-known parasite of the European Corn Borer (Pyrausta nubilalis, Hb.) and also parasitises many other hosts.As there has been considerable confusion in the synonymy and interpretation of E. roborator, F., it seems advisable to give notes on the relevant type specimens seen by me. It has been impossible to find the type of Ichneumon roborator, F. Gravenhorst's interpretation of this very variable species has therefore been taken. The description given by Schmiedeknecht in his Opuscula Ichneumonologica is adequate for the recognition of the female ; the male is very distinct, having a tubercle in the middle of the clypeus, a character unknown in any other described European species. Pimpla cicatricosa, Ratz., which is given by Schmiedeknecht as a synonym of P. roborator, F., is a distinct species.


Parasitology ◽  
1967 ◽  
Vol 57 (3) ◽  
pp. 507-513 ◽  
Author(s):  
F. E. G. Cox

Adelphocystis aeikineta, a new species of monocystid gregarine, is found in the coelom of the earthworm Keffia variabilis in which the trophozoites occur in large numbers in permanently associated pairs. They are large, measuring 750–1500, μm in length, and exhibit continual peristaltic motion. The ectosarc of the trophozoite is markedly striated and there is no evidence of any anterior differentiation. The gametocytes are rounded and the presumed bipolar sporocysts measure 12–14·5 μm in length. Some associated pairs occur in groups enclosed in a membrane and there is evidence that gametocytes may form under these conditions. A. aeikineta is placed in the subfamily Zygocystinae and separated from Zygocystis on its elongate shape. The site of infection of this gregarine, and others recently described, suggests that the morphological basis on which the family Monocystidae is divided into subfamilies and genera is inadequate and a sounder classification should take into account these sites of infection.The material on which this paper is based was collected while I was in receipt of a Wellcome Trust Travelling Grant, and I wish to thank the Trust for this support. It is also a pleasure to thank Mr R. W. Sims of the British Museum (Natural History) who identified the earthworms, Dr Keith Vickerman who helped me to collect them and Mr R. B. Freeman who advised me on the nomenclature.


1930 ◽  
Vol 67 (6) ◽  
pp. 275-277
Author(s):  
W. E. Swinton

In 1928 the Trustees of the British Museum purchased for the Geological Department the skeleton of a large Ichthyosaur then being prepared in the workshop of Dr. B. Hauff in Holzmaden. During its preparation the skeleton was, with the permission of the Department, studied by Professor F. von Huene, of Tübingen, who subsequently published and adequate description and figure of it, and who reached the conclusion that it was probably a new species. Since I consider that the specimen is undoubtedly different from the others so far described as Eurhinosaurus longirostris I propose here to review briefly its main characteristics under a new specific name. As von Huene has done the most important work on the genus it is with great pleasure that I name this new species in his honour.


Parasitology ◽  
1941 ◽  
Vol 33 (4) ◽  
pp. 445-458 ◽  
Author(s):  
Ben Dawes

Numerous specimens of a trematode which has proved to be a new species were collected from the kidneys of 'Ular sawa’ (Python reticulatus) at Alor Star and at Kedah, Malaya, by Mr G. B. Purvis, F.R.C.V.S. One batch comprises about 350 specimens, another one more than 150, and the entire collection of five batches exceeds 600 specimens. For this new species the name Styphlodora elegans is proposed. Mr Purvis also collected a single specimen of what seems to be a second new species from the stomach of the python at Alor Star, and for this the name Styphlodora compactum is proposed. Type specimens of the two new species are lodged in the British Museum (Natural History), London.


1910 ◽  
Vol 7 (8) ◽  
pp. 345-348 ◽  
Author(s):  
G. C. Crick

The British Museum collection has lately been enriched by two Cephalopods from the Chalk of Lincolnshire that seem to be worthy of notice; one being a new species of Pachydiscus (P. farmeryi), the other being referable to the genus Heteroceras.


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