Welcome! This Volume of animal placentas was created to assist with the examination and evaluation of the many different types of mammalian placentas. It is primarily directed to the veterinary pathologist, the zoo veterinarians and others who have an interest in understanding the bewildering variety of placental forms. When new placentas are added or new information comes about, the new date will appear at the bottom of this page.

I endeavor here to bring gradually all major animal species as I acquire the specimens. If new material is brought to my attention, I will incorporate this and welcome any possible material provided for these pages. You may email me directly at kbenirschke@ucsd.edu.


Before you begin, please note that clicking on most of the thumbnail images will open a new browser window with a larger version of the same image. (To see an example of this, click on my image above.) These web pages were created in this fashion to reduce download time and to give you control over which images you'd like to view in greater detail.

One final note. This site is composed of hundreds of pages and images. Therefore, if you wish to search for specific topics, simply click on the "search" link found on this and all subsequent pages.

This project has been and continues to be an ongoing labor of love. I trust that you will find this site to be a valuable resource and I look forward to hearing from you.

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What's New

Viscacha – Plains viscacha (Lagostomus maximus) [lu: January 19, 2012]
Sri Lankan Slow (Slender) Loris (Loris tardigradus) [lu: December 25, 2011]
Lowland Gorilla (Gorilla gorilla gorilla) [lu: September 22, 2011]
Killer Whale (Orcinus orca) [lu: September 22, 2011]
Silvered Leaf Monkey (Trachypithecus cristatus) [lu: June 28, 2011]
South African Meerkat (Suricata suricatta) [lu: June 13, 2011]
Pacific Walrus (Odobenus rosmarus divergens) [lu: June 13, 2011]
Topi (Sassabies; bontebok, blesbok) (Damaliscus lunatus korrigum) [lu: Nov 21, 2010]
Rhesus monkey and some other Cercopithecidae (Macaca mulatta) [lu: Nov 21, 2010]
Three-banded Armadillo (Tolypeutes matacus) [lu: October 3, 2010]
Black Rhinoceros (Diceros bicornis) [lu: August 30, 2010]
Malayan Tapir (Tapirus indicus) [lu: July 19, 2010]
East African River Hippopotamus (Hippopotamus amphibius kiboko) [lu: July 19, 2010]
Bongo (Tragelaphus eurycerus) [lu: March 28, 2010]
Fringe-eared Oryx (Oryx gazella callotis) [lu: September 14, 2009]
Red-fronted gazelle (Eudorcas rufifrons) [lu: June 23, 2009]
Springbok (Antidorcas marsupialis) [lu: April 26, 2009]
Angolan Colobus Monkey (Colobus angolensis) [lu: January 8, 2009]
Vampire Bat (Desmodus rotundus) [lu: October 9, 2008]
Brazilian free-tailed Bat (Tadarida brasiliensis) [lu: May 21, 2008]
Coquerel’s Sifaka (Propithecus (verreauxi) coquereli) [lu: April 25, 2008]
Greater Kudu (Tragelaphus strepsiceros) [lu: April 6, 2008]
Camelidae (Bactrian camel, dromedary, guanaco, llama, vicuña, alpaca) Camelus bactrianus, C. dromedarius, Lama guanicoe, L. glama, L. pacos, Vicugna vicugna [lu: April 6, 2008]
Pygmy Slow Loris (Nycticebus pygmaeus) [lu: February 15, 2008]
Camelidae (Bactrian camel, dromedary, guanaco, llama, vicuña, alpaca) [lu: February 7, 2008]
Kiang (Equus kiang) [lu: February 7, 2008]
African Lion (Panthera leo) [lu: February 7, 2008]
Rock hyrax - Rock dassie (Cony) (Procavia capensis) [lu: February 4, 2008]
Lesser Hedgehog Tenrec [Small Madagascar Hedgehog] (Echinops telfairi)
[lu: February 4, 2008]
Domestic Rabbit (Oryctolagus cuniculus) [lu: february 2, 2008]
Vampire Bat (Desmodus rotundus) [lu: January 27, 2008]
Gerenuk (Litocranius walleri) [lu: January. 1, 2008]
Giant anteater (Myrmecophaga tridactyla) [lu: Dec. 7, 2007]
Giant Chacoan Peccary (Catagonus wagneri) [lu: December 6, 2007]
Mammalian Speciation [lu: December 6, 2007]
Lesser Hedgehog Tenrec [Small Madagascar Hedgehog] (Echinops telfairi) [lu: October 28, 2007]
Scimitar-horned Oryx (Oryx dammah) [lu: October 2, 2007]
Delacour’s monkey (Trachypithecus delacouri) [lu: September 15, 2007]
Domestic Dog (Canis familiaris) [lu: August 27, 2007]
Rhebok (Pelea capreolus) [lu: August 21, 2007]
Royal Antelope (Neotragus pygmaeus) [lu: August 20, 2007]
African tree pangolin (white-bellied pangolin) (Manis tricuspis) [lu: July 26, 2007]
Giraffe (Giraffa camelopardalis) [lu: June 19, 2007]
East African River Hippopotamus (Hippopotamus amphibius kiboko)
Pygmy Hippopotamus Choeropsis (Hexaprotodon) liberiensis
[lu: June 19, 2007]
Greater Indian Rhinoceros (Rhinoceros unicornis) [lu: May 18, 2007]
Speke’s Gazelle (Gazella spekei) [lu: May 4, 2007]
L’Hoest’s Guenon (Cercopithecus lhoesti) [lu: April 18, 2007]
Kob (Uganda kob) (Kobus kob) [lu: March 26, 2007]
Domestic Horse (Equus caballus) [lu: March 21, 2007]
Spotted hyena (Crocuta crocuta) [lu: March 21, 2007]
Okapi (Okapia johnstoni) [lu: March 21, 2007]
Water buffalo (Bubalus bubalis) [lu: March 21, 2007]
Alpine Ibex (Capra ibex ibex) / East Caucasian Tur (Capra cylindricornis) / Turkmenian Markhor (Capra falconeri) [lu: March 21, 2007]
Elephants (Loxodonta africanus, Elephas maximus) [lu: March 21, 2007]
Muskrat (Ondatra zibethicus) [lu: March 4, 2007]
Spotted hyena (Crocuta crocuta) [lu: January 10, 2007]

© 2011. All rights reserved. Last updated January 19, 2012.