I have a question about the two types of lower class consonants, long type and short type (I am unsure of the correct terms for these). These determine when a word with a dead ending has a falling tone because of a long type or high tone because of a short type. For example in the word ยาก (difficult), the consonant ย is considered to be a long type so the word has a falling tone. In the word มด (ant), the consonant ม is considered to be a short type so the word has a high tone. I have a list of lower class consonants: ท ม น ค ว ร ล ง ย พ ฟ ช ภ ฆ ฌ ญ ฑ ฒ ณ ธ ฬ ฮ. My question is, which of these are considered to be short and which long?