THE PROBABLE FUNCTION OF FLEXULES

Ibis ◽  
2008 ◽  
Vol 114 (2) ◽  
pp. 265-266 ◽  
Author(s):  
R. J. Kennedy
Keyword(s):  
Probable Function

Bronze Age Cremation Cemeteries in the East Midlands

1987 ◽  
Vol 53 (1) ◽  
pp. 187-221 ◽  
Author(s):  
Carol S. M. Allen ◽  
Mary Harman ◽  
Hazel Wheeler
Keyword(s):  
Bronze Age ◽  
Direct Relationship ◽  
Small Cluster ◽  
Linear Arrangement ◽  
Thin Sections ◽  
Probable Function ◽  
East Midlands ◽  
Materials Used ◽  
First Time ◽  
Organic Remains

Two Bronze Age cremation cemeteries excavated between 1968 and 1975 are reported and discussed. At Coneygre Farm, Notts., fifty-one cremations were excavated, thirty-one in pots, six in cists, and fourteen uncontained. Cremations were deposited in a roughly linear arrangement and no barrow was found. At Pasture Lodge Farm, Lincs., twenty-seven pots were found, of which twenty-five had associated cremations, and fifteen further sherds could represent burials. Vessels in this cemetery form a small cluster. Pottery from these two cemeteries is broadly similar to Deverel-Rimbury ware and with vessels from other sites in the region is considered to form an East Midlands group of Bronze Age pottery. Vessels of this type from Frieston and Grantham, Lincs., are illustrated for the first time. Examination of thin sections of the pottery from the two cemeteries suggests that most, although not all, of the materials used could have been found locally. Organic remains found in thin sections provide environmental information. The effect of soils on durability of pots and their probable function is discussed. A direct relationship is noticed for the first time between the age of the cremated individual and the capacity of the pot in which the cremation was deposited.

Acoustic underwater signals with a probable function during competitive feeding in a tadpole

2010 ◽  
Vol 98 (2) ◽  
pp. 135-143 ◽  
Author(s):  
Erik Reeve ◽  
Serge Herilala Ndriantsoa ◽  
Axel Strauß ◽  
Roger-Daniel Randrianiaina ◽  
Tahiry Rasolonjatovo Hiobiarilanto ◽  
...  
Keyword(s):  
Probable Function

scholarly journals The foregut of the Mysida (Crustacea, Peracarida) and its phylogenetic relevance

1998 ◽  
Vol 353 (1368) ◽  
pp. 559-581 ◽  
Author(s):  
Wulf Kobusch
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Histological Techniques ◽  
Ground Pattern ◽  
Neomysis Integer ◽  
Probable Function ◽  
Mesopodopsis Slabberi ◽  
Scanning Electron

The foreguts of the mysids Antarctomysis maxima , A. ohlinii , Hansenomysis antarctica , Heteromysis formosa , Mesopodopsis slabberi , Neomysis integer , Paramysis kessleri , Praunus flexuosus , and Siriella jaltensis were examined by maceration methods, histological techniques, and scanning electron microscopy. Their morphology, their connection with the midgut glands, and probable function are described and summarized. Previous stomach investigations on mysids and the results of the present study are tabulated; a list of foregut characters, common to all Mysida, is presented. The phylogenetic relevance of these characters within the Malacostraca, especially within the Peracarida, is discussed. Most features are inherited from the ground pattern of the Malacostraca or Eumalacostraca. The bulbous cardia with its dorsal fold, the armature of the lateralia, and the construction of the funnel region are apomorphies for the Mysida. The results suggest that characters of mysidan and other peracaridan foreguts might also be useful in the elucidation of the phylogeny of the Mysida and Peracarida, respectively.

The structure and probable function of the internal cuticular parts of Johnston's organ in mosquitoes (Aedes aegypti)

1989 ◽  
Vol 67 (11) ◽  
pp. 2625-2632 ◽  
Author(s):  
Peter Belton
Keyword(s):  
Aedes Aegypti ◽  
Antennal Segment ◽  
Complex Structures ◽  
Probable Function ◽  
Johnston's Organ ◽  
Johnston’S Organ

Although the flagellum of the antennae of mosquito-like insects is known to vibrate in response to sounds, descriptions of the cuticular parts that suspend it in the second antennal segment are somewhat contradictory and incomplete. The complex structures that attach the base of the flagellum to the pedicel and its sense cells in Aedes aegypti (L.) (Diptera: Culicidae) are described. They are consistent with the functions of suspending the flagellum firmly in the pedicel and of anchoring the sheathing rods of the acoustically sensitive scolopidia while their dendrites are stretched or bent by the movement of the prongs.

The ciliary current of Phallusia [Ascidiacea] and the squirting of sea squirts

1966 ◽  
Vol 46 (1) ◽  
pp. 125-127 ◽  
Author(s):  
D. B. Carlisle
Keyword(s):  
Minor Role ◽  
Filter Feeding ◽  
Colloidal Graphite ◽  
Probable Function ◽  
Wet Weight ◽  
A Minor ◽  
Sea Squirts

Filtration rates for Phallusia were computed from the rate of clearance of sus-pensions of colloidal graphite and of the flagellate Isochrysis. Rates varied from 825 ml./h to 5100 ml./h for animals between 8 and 128 g wet weight (40–336 ml./h/g wet weight; 88–570 ml./h/mg nitrogen). The greater part of this current is ciliary; less than 2 % is accounted for by squirting. Squirting thus plays but a minor role in maintaining the feeding current. Its probable function is perhaps more comparable with the expulsion of pseudofaeces in filter-feeding molluscs.

scholarly journals The vascular filaments on the pelvic limbs of Lepidosiren, their function and evolutionary significance

1929 ◽  
Vol 105 (739) ◽  
pp. 484-493 ◽  
Keyword(s):  
Breeding Season ◽  
Evolutionary Significance ◽  
Breeding Period ◽  
Vital Activity ◽  
Male Fish ◽  
Probable Function ◽  
Gran Chaco ◽  
Fish Remains ◽  
Eggs And Larvae

In 1900 Prof. J. Graham Kerr published the results of his investigations into the habits and reproduction of Lepidosiren in the swamps of the Gran Chaco, in Paraguay (' Phil. Trans.,' Series B, vol. 292). He found that just before the breeding season papillæ which occur on the pelvic limbs of the male rapidly develop into long, bright-red, vascular filaments. These persist throughout the breeding period, during which the male fish remains in the Nesting burrow with the eggs and larvæ. After this period the filaments disappear, by atrophy of the tissues and disintegration, not by absorption. Neither filaments nor papillæ usually occur on the pelvic Iimbs of the female, but papillæ in a very rudimentary condition occur occasionally in female specimens, and, judging from the analogy of sex-limited characters in other vertebrates these specimens are possibly the oldest, and perhaps no longer fertile. Prof. Graham Kerr discusses the question of the function of these vascular filaments in the male. Sir Ray Lankester had suggested that they were accessory organs of respiration; Dr. Hans Gadow that they might be spawning brushes tor spreading the semen; Graham Kerr himself thought they might be due to "the intense vital activity associated with reproduction," but on further consideration agreed with Sir Ray Lankester that respiration was their most probable function.

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