Terrapins

Figure 8.26 shows a plot of ln(heart beat) (as y ) against 1 IT (as V) for the diamond-backed terrapin (Malaclemys macrospilota). 

Freshwater turtles appear to use waterborne cues to find members of the oposite sex. During the mating season, males of the Iberian peninsula terrapin. 

Munoz, A. 2004. Chemo-orientation using conspecific chemical cues in the stripe-necked terrapin Mauremys leprosa). Journal of Chemical Ecobgy 30,519-530. 

Turdes, tortoises, and terrapins have both an endoskeleton of bone and an exoskeleton. The exoskeleton consists of a two-part case made of keratin. The upper portion of this structure is the carapace, which is connected to the plastron on the underside of the animal by a bony bridge. Tortoises are terrestrial, while the other members of the order Testudines spend most of their time in the water (Figure 6.1). 

The scutes of all types of terrapins, turtles and tortoises have been tried out at one time or another as a form of tortoiseshell, but without success. Unfortunately not much was known about the different species, and, as some of them were able to regrow scutes that had fallen off, it was presumed that hawksbill turtles would also be able to do so. 

Red-eared terrapin, Pseudemys scripta elegans electrophysiology 360 [121]... 

In 1995, researchers at Terrapin proposed a completely different way to describe molecular similarity [97]. Rather than look at potential drug molecules alone, they took a set of reference proteins (the reference panel) into account. For each molecule, the binding affinity to each protein in the panel was determined experimentally. The list of binding affinities with respect to the reference panel is named the affinity fingerprint and is used as descriptor. The underlying idea is that while some similarity exists between a target protein and proteins in the reference panel, then binding affinities should correlate due to similar sub-pockets or pharmacophores which are common between the proteins. 

An analogous but more speculative and potentially much more powerful biofingerprint approach is championed by Terrapin Technologies (San Francisco, CA). The basic premise is that the active site of any enzyme or receptor can be simulated by combinations of a limited number of steric and electronic shapes. If the complementary stereo-electronic shape is present in a com-... 

Fig. 8. Terrapin bioprofiling pattern (adapted from ref. 47). Al, human gluthathione-5-transferase R8, rat glutathione-S-tranferase SI, schistosome glu-tathione-5-transferase HF2, housefly glutathione-i -transferase DAO, porcine D-amino acid oxidase BCh, equine butyryl cholinesterase Pap, papain PDE, snake venom phosphodiesterase I.

The fourth class includes fish chowder, clam chowder, codfish balls, green turtle stew, terrapin stew, and deviled crabs. 

A. S. Smellie, CONSTRUCTOR, Oxford Molecular Ltd., Terrapin House, University Science Area, South Parks Road, Oxford, England (1989). 

Temperature, terrapins, water fleas and micro-greenhouses... 

JERRY GARCIA AND ROBERT HUNTER, TERRAPIN STATION... 

Turtles, tortoises or terrapin (for American freshwater turtles) are reptiles with a shell used as a house . The logger head and green sea turtles are caught commercially for their meat. In Germany turtle is mostly eaten in soup or stew. The meat of the so-called soup turtle (Chelonia mydas) is faintly red to bright red, and is marketed canned. An imitation or mock turtle soup is prepared from edible parts of heads of calves and has no relation to turtles except for the name. 

Seigel, R.A. 1980. Courtship and mating behavior of the diamondback terrapin Malaclemys terrapin tequesta. J. Herpetol. 14 420-421. 

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