摘要:

A primitive clupeomorph fish,Spratticepsgaultinusgen. et sp. nov., is described on the basis of incomplete braincases from the Gault (Albian) of Folkestone, Kent. This is the earliest clupeomorph in which any details of cranial structure are known.Spratticepsis more primitive than living clupeomorphs in having no recessus lateralis, auditory fenestra, pterotic bulla or sinus temporalis, and in having a heavily ornamented, entire skull roof, with the sensory canals bone enclosed and the post‐temporal fossa roofed. The fish is too primitive to be placed in either suborder of Clupeomorpha, and is leftincertae sedis.The primary characters of the Clupeomorpha are discusse

ISSN:0024-4082    

DOI:10.1111/j.1096-3642.1970.tb00733.x

出版商:Blackwell Publishing Ltd    

年代:1970

数据来源: WILEY

摘要:

The species described areNereis (Nereis) neogracilissp. nov. andPerinereis kuzvaitensissp. nov. from the Arabian Gulf. The account includes both structural details, means of recognition and description of habitat.

ISSN:0024-4082    

DOI:10.1111/j.1096-3642.1970.tb00734.x

出版商:Blackwell Publishing Ltd    

年代:1970

数据来源: WILEY

摘要:

GlaucillaBergh, 1868 is positively recorded for the first time from eastern Australia, together withGlaucurForster, 1777. The former is allocated toG. mrginutaBergh, 1868 and the latter toG. atlanticucForster, 1777.Glaucillahas multiseriate ceratal clusters (uniseriate inGlaucus), an unarmed penis (armed with a chitinous spine inGlaucas) and several anatomical peculiarities. Glaucid nudibranchs feed upon species ofVelella, PhysaliaandPorpita; nematocysts ofPhysaliaare subsequently employed for defence. BothGlaucusandGlaucillaare potentially harmful to man.

ISSN:0024-4082    

DOI:10.1111/j.1096-3642.1970.tb00735.x

出版商:Blackwell Publishing Ltd    

年代:1970

数据来源: WILEY

摘要:

Among the numerous nonparasitic allodapine bees there are 11 known species with parasitic or probably parasitic habits. These species live in nests of their close relatives, the female parasite replacing an egg‐layer of the host. Seven of the parasitic species are distributed among four otherwise nonparasitic genera, while four species of parasites are placed in three exclusively parasitic genera. The parasites have mostly arisen independently from different nonparasitic forms.There is much convergence among the parasitic forms involving such characters as the flattened or concave face, reduced eyes, reduced mouthparts, reduced wing venation, and reduced pollen‐carrying scopa. In the most specialized parasitic genera the mouthparts are so small as to be almost surely useless for obtaining food from flowers. Such bees must feed in the host nest, and are not found on flowers. Their wings must be adequate to take them to a new host nest but the reduced venation and eyes must reflect the reduced locomotary and sensory needs of a bee that does not visit flowers.In this paper a new, presumably parasiticAllodapulais described as is a parasiticBraunsapis, a parasiticAllodape, and aEucondylops.A previously describedMacrogaleais recognized as a parasite for the first time. A new genus and species of parasitesNasutapsis straussorum, allied toBraunsapis, is also described. All these forms are from Afr

ISSN:0024-4082    

DOI:10.1111/j.1096-3642.1970.tb00736.x

出版商:Blackwell Publishing Ltd    

年代:1970

数据来源: WILEY

摘要:

The venom glands of four specimens ofElaps lacteuswere examined and found to be structurally similar to the glands of other Elapidae and consequently different from the variable glands of the colubrid Aparallactinae, Lycophidinae and Dispholidinae. The recently proposed removal ofElapsfrom the Elapidae and its inclusion in the Aparallactinae (McDowell, 1968) is discussed, and the conclusion is reached thatElapsshould remain within the Elapidae.

ISSN:0024-4082    

DOI:10.1111/j.1096-3642.1970.tb00737.x

出版商:Blackwell Publishing Ltd    

年代:1970

数据来源: WILEY

摘要:

The methods used to observe the construction of the brood chamber and rearing of the young by the femaleCormocephalus ancepsare described. The period of egg laying and the maternal care, essential for the survival of both eggs and brood, were observed and the behaviour of the female during this time is recorded. Two broods were successfully reared to first year adolescent stages in the laboratory. The two embryonic and three adolescent stages are briefly described and their developmental times recorded. Subsequent stages of development are noted by increase in size until sexual maturity is attained in the second year. The length of life and number of broods per female remains to be investigated.

ISSN:0024-4082    

DOI:10.1111/j.1096-3642.1970.tb00738.x

出版商:Blackwell Publishing Ltd    

年代:1970

数据来源: WILEY

摘要:

A topotype of the poorly known reptileLycorhinus angustidensHaughton (1924) is described. This specimen demonstrates thatLycorhinusis a genuine ornithischian dinosaur of late Triassic age and not, as previously supposed, a therapsid. The generic term‘Heterodonto‐saurus’Crompton&Charig (1962) is regarded as an invalid junior synonym forLycorhinusand is discarded–though the speciestucki(now referred toLycorhinus)is retained as distinct fromangustidenson the basis of slight differences in tooth structure.Lycorhinusis included within the family Hypsilophodontidae of the suborder Orni

ISSN:0024-4082    

DOI:10.1111/j.1096-3642.1970.tb00739.x

出版商:Blackwell Publishing Ltd    

年代:1970

数据来源: WILEY

摘要:

Detailed reproductive data on this salamander endemic to Lake Patzcuaro, Michoacan, are reported for the first time, and were obtained from a laboratory colony. This species is relatively easy to culture in the laboratory, and it should be useful in experimental zoological studies. The courtship resembles closely that ofAmbystoma tigrinum.Four matings resulted in deposition of 9 to 16 spermatophores. The large (10 to 28 mm in diameter) spermatophores are topped by an undetachable cap of seminal fluid (2times3 mm). Females apparently removed some seminal fluid from each of several caps. About one day after courtship each female laid eggs, 290 to 1120 per female per spawning; the total complement per year is probably 300 to 1700 depending on the size of the female. The relatively small (2.0–2.2 mm vitellus) and lightly pigmented eggs were attached to the substrate in long strands, in single fil

ISSN:0024-4082    

DOI:10.1111/j.1096-3642.1970.tb00740.x

出版商:Blackwell Publishing Ltd    

年代:1970

数据来源: WILEY