虎斑颈槽蛇消化、呼吸和生殖系统的解剖

虎斑颈槽蛇（Ｒｈａｂｄｏｐｈｉｓｔｉｇｒｉｎａ）是分布比较广泛的爬行动物。本文主要对其消化、呼吸、生殖系统的形态结构特征进行了较详细报道。     

蜥蜴亚目的爬行动物

本文介绍了美国 9科、2 5属、1 35种和中国 8科、34属、1 2 0种蜥蜴亚目的爬行动物     

重庆自然博物馆馆藏爬行动物名录

本研究对重庆自然博物馆馆藏的爬行动物标本进行清点、整理,得到自然博物馆馆藏国内爬行动物标本164种,分属于壁虎科（Gekkonidae）7属,鬣蜥科（Agamidae）6属,巨蜥科（Varanidae）1属,蜥蜴科（Lacertidae）4属,石龙子科（Scincidae）3属,盲蛇科（Typhlopidae）1属,蟒科（Boidae）2属,游蛇科（Megapodiidae）25属,眼镜蛇科（Elapidae）6属,蝰科（Viperidae）7属,鳖科（Trionychidae）2属,海龟科（Cheloniidae）1属,平胸龟科（Platysternidae）1属,乌龟科（Emydidae）2属,陆龟科（Tesrudinidae）2属,鳄科（Crocodylidae）1属,以及3个国外物种粗颈龟（Siebenrockiella crassicollis）、咸水泥彩龟（Callagur borneoensis）和蛇鳄龟（Macroclemystemminckii。）     

Characterization of Salmonella isolates from captive lizards

Reptile-associated salmonellosis in humans is an increasing public health issue. This study aimed at characterizing Salmonella isolates from captive lizards and to compare them to human isolates. Salmonella was isolated from 25 of 33 cloacal and 47 of 79 faecal samples from captive lizards (75.8 and 59.5%, respectively). The strains belonged to 44 serotypes of subspecies I (27 serotypes), II (9), IIIb (3) and IV (5). Two strains, one of serotype Enteritidis and one of serotype Amsterdam, were resistant to nitrofurantoin. Invasion assays in Caco-2 cells were performed with 40 saurian isolates of subspecies I, 15 isolates of subspecies II, 4 strains of subspecies IIIb, 6 subspecies IV isolates and 17 human isolates of corresponding serotypes of subspecies I. Saurian isolates belonging to subspecies I invaded the Caco-2 cells to a higher extent than those from the other subspecies. The human isolates invaded the Caco-2 cells to a lesser degree compared to their saurian counterparts. In the same strains, the presence of virulence genes agfA, shdA, spvR, pefA and sopE was determined using PCR. Whereas agfA was detected in all strains, pefA was only detected in one saurian and in the human serotype Enteritidis strains. The spvR gene was detected in the same serotype Enteritidis strains and in 33% of the subspecies IV strains. The shdA gene was present in all the human isolates and in 86% of subspecies I saurian isolates. SopE was found in 17% of the human isolates, in 24% of the saurian subspecies I strains and in all of the subspecies IV strains.     

Echocardiographic and radiographic findings in a cohort of healthy adult green iguanas (Iguana iguana)

ObjectivesTo describe characteristics of echocardiography and cranial coelomic radiography in a cohort of iguanas.AnimalsTwenty apparently healthy adult green iguanas (Iguana iguana) from a reptile sanctuary.MethodsPhysical examination, radiography, two-dimensional and color Doppler echocardiography were performed to assess cardiac structures and function, and any related normal or abnormal findings were recorded.ResultsEchocardiographic examination was possible without sedation and allowed visualization of the great vessels, atria, and ventricle. Some structures could not be evaluated in a minority of the iguanas due to individual differences in bony conformation and imaging quality. Suspected abnormal echocardiographic findings in 3 iguanas included pericardial effusion (n = 1) and enlarged caudal vena cava and/or sinus venosus (n = 2). Objective measurements were repeatable as assessed by within-subject coefficient of variation, and reliable as assessed by intra-observer intraclass correlation coefficient. Left atrial and ventricular measurements were significantly correlated with body weight. Valve regurgitation was common, with atrioventricular valve regurgitation present in 53% (9/17) and aortic or pulmonic valve regurgitation in 71% (12/17) of otherwise normal iguanas. A heart murmur was not appreciated during examination of any of the iguanas. Heart size cannot be measured radiographically due to superimposition and silhouetting of other coelomic structures. Echocardiographic or radiographic findings consistent with mineralization of the great vessels were present in 76% of iguanas (13/17).ConclusionsEchocardiography in iguanas is well tolerated without sedation and allowed both subjective evaluation and structural measurements. Valve regurgitation and great vessel mineralization were commonly observed in this cohort of apparently healthy adult iguanas.