A Sub-Dorsal Fin Pore/Canal System in the Centrolophid Fish Schedophilus maculatus (Pisces: Stromateoidei)

Copeia ◽  
1981 ◽  
Vol 1981 (2) ◽  
pp. 492 ◽  
Author(s):  
R. M. McDowall
Keyword(s):  
Canal System ◽  
Dorsal Fin ◽  
Pore Canal

Ultrastructure of the Tegumentary Pore-Canal System of the Acanthocephalan Moniliformis dubius

1969 ◽  
Vol 55 (5) ◽  
pp. 993 ◽  
Author(s):  
Richard D. Wright ◽  
Richard D. Lumsden
Keyword(s):  
Canal System ◽  
Pore Canal

scholarly journals The emergence of a complex pore‐canal system in the dermal skeleton of Tremataspis (Osteostraci)

2021 ◽  
Author(s):  
Oskar Bremer ◽  
Qingming Qu ◽  
Sophie Sanchez ◽  
Tiiu Märss ◽  
Vincent Fernandez ◽  
...  
Keyword(s):  
Canal System ◽  
Pore Canal

Jaw Fragment Pore Canal System [Mesh] [CT]

2021 ◽  
Author(s):  
Benedict King
Keyword(s):  
Canal System ◽  
Pore Canal

Fine structure of the cuticle, epidermis, and fat body of larval Elateridae (Coleoptera) and changes associated with molting

1972 ◽  
Vol 50 (11) ◽  
pp. 1463-1487 ◽  
Author(s):  
R. Y. Zacharuk
Keyword(s):  
Fine Structure ◽  
Fat Body ◽  
Lipid Monolayer ◽  
Fat Cells ◽  
Surface Lipid ◽  
Canal System ◽  
Transformation Zone ◽  
Pore Canal ◽  
Lipid Layers

The intermolt cuticle of three species of soil-inhabiting wireworms consists of four layers: non-oriented lipid over an oriented lipid monolayer, outer epicuticle. membrane epicuticle, and an inner dense epicuticle. Sclerites lack the surface lipid layers, but have a thinly laminated transformation zone underlying the epicuticle. There are three layers of exocuticle in sclerites, but only the central one of these is continuous through adjacent membranes. The cuticular pore canal system has medial axial filaments and peripheral fibrils, which seem to serve as wicks in transporting, primarily, lipids to the surface of membranes, and sclerotins, cuticulin, and lipids into the upper layers of cuticle in sclerites. In exuvial histolysis there is an initial degradation of subcuticle by enzymes from the epidermis before the new epicuticle is formed, and a subsequent histolysis of procuticular lamellae by enzymes from ecdysial droplets released primarily by ecdysohemocytes in the exuvial space after the new epicuticle is formed. The ecdysial membrane originates by delamination of the procuticular lamellae of the exuvium, and seems to consist primarily of enzyme-resistant components that accumulate from successive lamellae, particularly of sclerites, for discard with the exuvium at ecdysis. The dynamics of the epidermal and fat cells during formation of cuticle and muscle attachments are described and discussed.

Jaw Fragment Pore Canal System [Mesh] [CT]

2021 ◽  
Author(s):  
Benedict King
Keyword(s):  
Canal System ◽  
Pore Canal

Campanian and Maastrichtian hippuritid rudists (Hippuritida, Bivalvia) of the Chiapas Central Depression (southern Mexico) and implications for American multiple-fold hippuritid taxonomy

2018 ◽  
Vol 93 (2) ◽  
pp. 291-311
Author(s):  
Jose Maria Pons ◽  
Enric Vicens ◽  
Pedro García-Barrera
Keyword(s):  
Layer Structure ◽  
Outer Shell ◽  
Shell Layer ◽  
Left Valve ◽  
Canal System ◽  
Southern Mexico ◽  
Central Depression ◽  
Pore Canal ◽  
The Caribbean ◽  
The Right

AbstractHippuritids, particularly those with multiple-folds, are one of the most characteristic components in uppermost Cretaceous rudist-bearing strata of the Caribbean Province. The hippuritid rudist fauna of the Chiapas Central Depression includes the following taxa:Vaccinites vermuntiMac Gillavry, 1937 andBarrettiacf.B. ruseaeChubb, 1967 from the early Campanian Suchiapa Formation;B. moniliferaWoodward, 1862,B. gigasChubb, 1955, andParastroma trechmanniChubb, 1967 from the mid Campanian Suchiapa Formation; andPraebarrettia sparcilirata(Whitfield, 1897) from the early Maastrichtian Ocozocoautla Formation. These six species are described herein in detail. New observations on the outer shell layer structure of the right valve and the pore-canal system of the left valve led to amending the diagnoses of the g|eneraBarrettiaWoodward, 1862,ParastromaDouvillé, 1926, andPraebarrettiaTrechmann, 1924. Also, the revision of Chiapas’ and other American species of multiple-fold hippuritids led to proposed changes in their generic adscription.

Modeling the Effect of Flow Structures on Canal System Residence Time

2008 ◽  
Author(s):  
N. P. Benfer ◽  
B. A. King ◽  
C. J. Lemckert ◽  
S. Zigic
Keyword(s):  
Residence Time ◽  
Flow Structures ◽  
Canal System

Design of artificial lateral linesystem: biomimetic flow sensor and canal system

2014 ◽  
Author(s):  
C.H. Cho ◽  
J.W. Han ◽  
J.H. Won ◽  
Y.S. Ryuh
Keyword(s):  
Flow Sensor ◽  
Canal System

A standardized terminology of spines in the order Siluriformes (Actinopterygii: Ostariophysi)

2021 ◽  
Author(s):  
Gustavo A Ballen ◽  
Mario C C De Pinna
Keyword(s):  
Comparative Anatomy ◽  
Appendicular Skeleton ◽  
Extensive Literature ◽  
Direct Examination ◽  
Dorsal Fin ◽  
Anatomical Nomenclature ◽  
Standardized Terminology ◽  
The Cost ◽  
First Time ◽  
Terminology System

Abstract A standardized terminology for the anatomy of pectoral- and dorsal-fin spines in the order Siluriformes is proposed based on an extensive literature review and direct examination of representatives of the order. The adult anatomy of the spines is described in detail. Terminology of various spine parts are reviewed and standardized, each term provided with a synonymic list organizing previous usage. Most of the structures treated have been recorded and named in the literature, but some are herein named for the first time. A quantitative approach is proposed for orienting decisions on name usage, aiming at minimizing differences between the terminology proposed and the vast amount of pre-existing literature, herein called the cost function. It is expected that this system will aid efforts in organizing the chaotic anatomical nomenclature of the appendicular skeleton in Siluriformes, and provide a solid basis for advances in comparative anatomy and nomenclature. The proposed terminology system has potential application on a number of fields that utilize information from catfish spines, ranging from taxonomy to phylogenetic systematics to paleontology and archaeology.

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