Here is the who article then, courtesy of Jim Sargeant - Split Rock Reptiles.
ps. keep posting as I have found what you have posted so far (an the responses) fascinating.
Split Rock Reptiles
Natural History
The Blackhead Python ( Aspidites melanocephalus ) has long been a fixture in the aura and mystique of Australia's outback. Blackheads, along with the better-known Woma, occupy the genus Aspidites , a group thought to be one of the most ancient of all pythons. Both members of this genus are widely considered primitive pythons. This is mainly due to their lack of the thermoreceptive labial pits along the upper and lower “lip” scales, traits found in every other python. Gerard Krefft officially described Aspidites melanocephalus on July 28, 1864 .
Found along the upper third of Australia, this python is at home in a variety of habitats from sandy ridges at the edge of deserts to lush sub-tropical forests and savannas. Wild Blackheads are largely fossorial and prey almost exclusively upon other cold-blooded animals. A variety of skinks, agamids, and other snakes (including highly venomous species) make up about 90% of their wild food source. The other 10% can be attributed to the rare mammal or bird. Blackheads can be considered medium-sized pythons. Adult males typically reach lengths of 6 to 8 feet and weigh 6 to 10 pounds. Females are generally larger, averaging lengths of 8 to 12 feet and weights of 10 to 20 pounds.
Blackheads are obviously named for their striking black head and neck and are sometimes referred to as “Tommy Tar Pots” by locals because they look as if their shiny heads had been freshly dipped into a pot of tar. The purpose for this hood is poorly understood, but one possibility could be camouflage for entering dark burrows with little detection. It also has been suggested that the hood is beneficial to basking in cooler temperatures. Blackheads, while cool and their reactions slow, can stay concealed but safely expose the jet-black head to the sun allowing the brain and body to gain function. The width of the head is not particularly distinct from the neck and allows them to hunt the narrow earthen burrows of goannas and skinks with ease.
In addition to the jet-black hood, Blackheads have a banded pattern across the body. These are remarkably variable pythons and there are tremendous differences in band width, spacing, and overall count from specimen to specimen. Coloration of the body is also highly varied. The base color can range from a light brown through brilliant white or banana yellow. The banding itself can even be black, brown, red, orange, or shades in between. On rare occasions, some Blackheads go through incredible color transformations during early adulthood (5 to 7 years of age). This transformation is usually rapid and involves the replacement of dark pigment in the banding and ground color with pastel shades of red, pink, and orange.
Captive Husbandry
Blackhead Pythons are probably one of the easiest pythons a keeper could have. They reach impressive sizes, are eager feeders, and are very forgiving of keeper errors. Because of their expansive and climactically varied natural range, they are highly adaptable to nearly any captive condition. This makes them generally without shedding problems and equipped to handle a wide range of temperatures. It stands to reason that a species at home in so many natural habitats should feel quite comfortable within the narrow range of extremes they will face in the captive environment.
The temperament of captive Blackheads is as variable as the snake itself, but generally very pleasant. Babies will often bluff by flattening their heads with an open-mouthed hiss. When striking, it is very rare in our experience that a Blackhead will truly bite. They lunge aggressively forward with a closed mouth in a “head-butt” attempt to scare the source of agitation. Adults are very inoffensive, rarely offering even a hint of discontentment while being handled. Larger adults make quite fantastic displays with their long, mature hood and muscular build.
Blackheads are very easily housed in captivity. Babies can be started in the commonly seen tub rack systems. All they need is a thermal gradient (80 cool end/ 90 warm end), a suitable substrate, and a water bowl and they will thrive. As they grow, our juveniles are progressively stepped through larger and larger tubs until 4 to 5 feet long. At this point they can be moved into their permanent enclosures. An enclosure with 4 feet by 2 feet of floor space is suitable for adult males. The larger females will benefit from a roomy 6 feet by 2 or 2 ½ feet of floor area. Adults should also be given a wider thermal gradient than offered to juveniles. A basking spot of up to 95 degrees and a cool end temperature down to 80 degrees is ideal. Adult Blackheads greatly appreciate top entry hide boxes, giving the sense of a subterranean burrow.
There are many acceptable substrates for these adaptable pythons. Avoid things like pine and cedar shavings due to the oils they contain. Newsprint works great for raising babies. Aspen, CareFresh, and paper (newsprint or cage liners) can be used for adults. Substrates that have small debris mixed in such as cypress mulch aren't recommended for Aspidites .
Feeding Blackheads is one of the great joys of ownership for keepers. They process their food quickly and efficiently and grow at a tremendous rate. Young Blackheads can easily be raised to adult size in 2 ½ to 3 years. It is hard to overfeed growing Blackheads but mature specimens must be prevented from becoming obese. This can be accomplished by offering multiple smaller rats as opposed to feeding single large meals. A good feeding schedule for juveniles is a meal every 5 to 7 days. Adults should be fed medium rats every 2 to 3 weeks for maintenance with pre-breeding females being fed every 10 days. There are no problems or dietary “quirks” with this species; they rarely refuse a meal and are always looking forward to their next dining experience.
Not only do Blackheads make easy captives they are incredibly interesting as well. Although there is no way to accurately evaluate the intelligence of a snake, Blackheads seem quite astute and interested in their surroundings. They are well aware of their domain and seem very curious about the outside world. Blackheads can often be seen sitting for extended periods with their hooded neck and head at a constant 40 to 90 degree angle while their bodies are well hidden beneath the substrate. They do this particularly when outside, much like our North American Racers (Coluber constrictor) can be seen doing in the field.
Breeding Blackheads
As stated earlier, Blackheads occupy some pretty variable habitats. For most of their natural range, they experience fairly dramatic climactic changes from season to season. The goal is to mimic the transition of long, warm summer days into the cooler, shorter days of fall and winter. This is simply accomplished using appliance timers on the cage heat and light sources. Summertime cages have 24-hour basking availability and 16 hours of daylight. At the onset of cycling, usually mid-November, the basking spot is plugged into the lighting timer and the timer is gradually reduced along with the night room temperature. By January, the Blackheads are experiencing 8-hour days and long, cool nights of about 65-68 degrees.
Males will begin getting restless early during this cycling period and will start to impatiently cruise their cages looking for their mate. We introduce pairs after the snakes are several weeks into the cycling regime. Courtship is often immediate with copulation quickly following as the female lifts her tail in the air and gapes her cloaca. The male remains with the female courting and breeding until ovulation, at which time he is returned to his cage for some well-earned rest.
Occasionally, a male may seem to have no interest in breeding the female. To initiate courtship and copulation a second male can be brought in to promote combat. A good tussle between the boys often makes all the difference. Combating males are then separated and the intended male can be re-introduced to the waiting female with a renewal of breeding vigor. Attempts at rotating a single breeding male to several females in one season has had limited success for many breeders. Blackhead males seem to “imprint” with the female they were first introduced to and too much shuffling around can result in total breeding failure.
As breeding and courtship continue through the cycling season, the female will begin to show signs of follicular swelling. The swelling will be noticed slightly below the mid-body point. This thickening is frequently mistaken for ovulation causing keepers to prematurely separate the pair only to have the female re-absorb her follicles. Once the follicles are aligned within the body, the swelling subsides a bit. At this point, males catch their second wind and copulations resume. These are the matings that seem to matter most
.
Females will typically go on to ovulate from mid February to mid March. An ovulating Blackhead is completely unmistakable, swelling to almost inconceivable proportions. This massive swelling lasts 24 to 36 hours and is a sure sign that the female is gravid.
Once the female has ovulated, it is time to return the cage parameters to their normal conditions. Ovulation to egg deposition is generally 60 days and during this time females bask extensively, often in an extremely inverted position. It is not unusual to see a female completely inverted, head to tail. Females typically deposit 7 to 10 eggs although exceptional clutches have numbered up to 20 eggs. In nature, the female will incubate her eggs by surrounding them, shivering to generate heat.
Egg Incubation and Neonate Care
Successful artificial incubation of Blackhead eggs has challenged experienced keepers for years. Eggs placed in a sweater box on plastic egg crating, over damp perlite provides the necessary humidity without the danger of direct contact with moisture. Direct contact with moisture can send a clutch to failure quickly. Incubation temperatures should be around 88 to 89 degrees in a stable incubator. The eggs should be oxygenated frequently by opening and closing the lid while making a quick visual egg check. The eggs will pip after 62 to 65 days of incubation.
Seeing little black heads poke through the white shells is a thrilling and humbling experience as the young heirs peer out into their new world. Babies absorb a huge amount of yolk at birth and generally don't require feeding for the first 6 to 8 weeks. After this initial period, babies are offered frozen-thawed rat pinks weekly. These are usually placed in the cage and left overnight. Uneaten meals are discarded the following morning. Some babies eat voluntarily, but many will require assist feeding for several months until they are ready to feed independently. This process requires time and patience. Once feeding, the rewards of seeing a baby Blackhead taking off on their journey to adulthood are immeasurable.