+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

The manus of pseudorca crassidens a study of variability

, : The manus of pseudorca crassidens a study of variability. Investigations on Cetacea 13: 101-124

A total of 213 flippers of P. crassidens was analyzed, comprising 95 pairs and 23 individual flippers. The latter included the left flipper of a 42 cm long fetus. The flippers came from 118 individuals of different ages (from a few months to 24 yr). The variability of the hand skeleton of Pseudorca does not correlate with the variability of the rest of the skeleton. Comparison of the Pseudorca hand skeleton with that of 6 other odontocetes [Globicephala melaena, Inia geoffrensis, Pontoporia blainvillei, Platanista indi, P. gangetica and Delphinapterus leucas] shows that the intermedium (lunar) and unciform are always present as independent bones and only in Pseudorca are they sometimes joined with other carpalia. The centrale is the most commonly missing bone; it only constantly occurs as a separate bone in Platanista indi. The trapezium and radiale are the carpal elements most frequently subject to fusion. Only in I. geoffrensis are they always separate. Of the 7 spp. examined, Pseudorca crassidens is the only one in which each carpal element may be fused with another carpal bone, and I. geoffrensis the only species where no fusion in the carpus occurs at all.


Other references

Gantzer, M.L.; Klevickis, C.; Grisham, C.M., 1982: Interactions of Co(NH3)4ATP and Cr(H2O)4ATP with Ca2+-ATPase from sarcoplasmic reticulum and Mg2+-ATPase and (Na+ + K+)-ATPase from kidney medulla. Biochemistry 21(17): 4083-4088

Logé, Cédric.; Wallez, Vérie.; Scalbert, E.; Cario-Tourmaniantz, C.; Loirand, G.; Pacaud, P.; Lesieur, D., 2003: Rho-kinase inhibitors: pharmacomodulations on the lead compound Y-32885. In order to specify structure-activity relationships we have synthesized new series of analogues of the Rho-kinase inhibitor (R)-(+)-N-(4-pyridyl)-4-(1-aminoethyl)benzamide (Y-32885). The structural modifications concerned the 1-aminoethyl, the py...

LuWenHua ; Zhao GuangJie, 2007: Structure and characterization of Cunninghamia lanceolata wood-MMT inter-calation nanocomposite (WMNC). With water-soluble phenol-formaldehyde resin as intermediate, Cunninghamia lanceolata wood-montmorillonite nanocomposite (WMNC) was prepared through vacuum impregnation and characterized with XRD, SEM, FTIR and TG-DTA analyses respectively. XRD an...

Hatch, M.; Freel, R.W.; Vaziri, N.D., 1995: Intestinal transport and renal excretion of urate is altered by a specific angiotensin II antagonist, DUP753. FASEB Journal 9(3): A368

Wallois, F.; Lebeon, A.; Duron, B., 1997: An improved mechanical air puff stimulator that allows activation of a variety of endoepithelial receptors and is suitable for the study of reflexes in animals and humans. Studies of endoepithelial-triggered reflexes, such as nasal respiratory reflexes, are difficult to carry out in humans without a non-traumatic and reliable stimulation device. The air puff stimulator described allows us to deliver air puffs of bri...

Stromgren, B., 1980: Contract transcription services--cost containment decision. Journal of the American Medical Record Association 51(5): 79-83

Popovic, P.J.; Zeh, H.J.; Ochoa, J.B., 2007: Arginine and immunity. For many years, dietary arginine supplementation, often combined with other substances, has been used as a mechanism to boost the immune system. Considerable controversy, however, exists as to the benefits and indications of dietary arginine due...

Diehm, Margaret May, 1929: The nature of pin-point colonies in raw and pasteurized milk. "Minimo-visible" is proposed as more suitable than "pin-point" for those colonies just visible to the naked eye, appearing small with a hand lens, having the described characteristics, and so minute that many are lost in transf...

Dawit, L.E.; Bussert, R., 2008: Stratigraphy and facies of early Mesozoic clastic coastal to nearshore marine depositional sequences in northern Ethiopia. Schriftenreihe der Deutschen Gesellschaft fuer Geowissenschaften 58: 85

Ballesteros, M.L.; Hued, A.C.; Gonzalez, M.; Miglioranza, K.S.B.; Bistoni, M.A., 2017: Evaluation of the Health Status of the Silverside (Odontesthes bonariensis) at a RAMSAR Site in South America. The objective of this work was to evaluate the health status of an economic and ecologically important fish species from Mar Chiquita Lake, a RAMSAR site located in Cordoba, Argentina, relative to the levels of selected persistent organic pollutan...